English

Txais tos rau CHUANGRONG

Dub PE100-RC Tiv Thaiv Kev Sib Tsoo Corrosion Resistance HDPE Yeeb Nkab Rau Dej Thiab Roj Muab Duab Tshwj Xeeb

Dub PE100-RC Tiv Thaiv Kev Sib Tsoo Corrosion Resistance HDPE Yeeb Nkab Rau Dej Thiab Roj Av Muab

Kev Piav Qhia Luv:

1. Loj:DN20-1600mm rau Kev Muab Dej.

2. Siab:SDR33- SDR7.4, PN4-PN25.

3. Khoom siv:100% Nkauj Xwb PE80, PE100, PE100-RC.

4. Tus Qauv:ISO 4427, EN 12201, ASTM F714, AS/NZS 4130, DIN 8074, GOST 18599, IPS.

5. Ntim Khoom:11.8m, lossis 5.8m/pcs rau ncaj, 50-200m los ntawm coils rau DN20-110mm.

6. Kev xa khoom:3-15 hnub nyob ntawm tag nrho cov khoom.

7. Kev Tshuaj Xyuas:Kev tshuaj xyuas cov khoom siv raw. Kev tshuaj xyuas cov khoom tiav lawm. Kev tshuaj xyuas sab nraud ntawm qhov kev thov.

8. Cov khoom siv:OD20-1600mm, SDR26-SDR7.4, Qhov (Socket fusion), Kev Sib Tov Taub Qab, Kev Sib Tov Hluav Taws Xob, Kev Tsim Kho, Kev Siv Tshuab, Cov Khoom Siv Sib Txuas.

Xa email rau peb Xa email

Cov Khoom Qhia Txog Khoom

Kev Qhia Tshwj Xeeb & Kev Ua Haujlwm

Daim Ntawv Thov & Daim Ntawv Pov Thawj

Cov Cim Npe Khoom

Cov Ntaub Ntawv Tseem Ceeb

Lub hom phiaj ntawm CHUANGRONG yog muab kev daws teeb meem zoo tshaj plaws rau cov yeeb nkab yas rau ntau tus neeg siv khoom. Nws tuaj yeem muab kev pabcuam tsim qauv thiab kho kom haum rau koj qhov project.

Dub PE100-RC Tiv Thaiv Kev Sib Tsoo Corrosion Resistance HDPE Yeeb Nkab Rau Dej Thiab Roj Av Muab

Cov Lus Qhia Txog Khoom		Lub Zog ntawm Lub Tuam Txhab/Lub Hoobkas
Lub Npe	Cov Yeeb Nkab Dej Haus Uas Muaj Cov Polyethylene Siab (HDPE)	Peev Xwm Tsim Khoom	100,000 Tuj / Xyoo
qhov loj	DN20-1600mm	Qauv	Muaj qauv dawb
Siab	PN4- PN25, SDR33-SDR7.4	Lub sijhawm xa khoom	3-15 hnub, nyob ntawm seb muaj pes tsawg
Cov Qauv	ISO 4427, ASTM F714, EN 12201, AS/NZS 4130, DIN 8074, IPS	Kev Ntsuas/Kev Tshuaj Xyuas	Lub chaw kuaj mob hauv tebchaws, Kev tshuaj xyuas ua ntej xa khoom
Cov Khoom Siv Raw	100% Nkauj xwb l PE80, PE100, PE100-RC	Daim Ntawv Pov Thawj	ISO9001, CE, WRAS, BV, SGS
Xim	Dub nrog xiav kab txaij, Xiav lossis lwm yam xim	Kev Pov Hwm	50 xyoo nrog kev siv li niaj zaus
Ntim khoom	5.8m los yog 11.8m/ntev, 50-200m/yob, rau DN20-110mm.	Zoo	QA & QC system, Xyuas kom meej tias txhua txoj kev taug qab tau
Daim Ntawv Thov	Dej haus, Dej tshiab, Kev ntws dej, Roj thiab roj av, Kev tsuas av, Kev khawb av, Tubrog nkoj, Kev ywg dej, Kev lag luam, Tshuaj lom neeg, Kev tua hluav taws ...	Kev Pabcuam	R&D, kev tsim khoom, kev muag khoom thiab kev teeb tsa, kev pabcuam tom qab muag
Cov khoom sib phim: Butt fusion, Socket fusion, Electrofusion, Drainage, Fabricated, Machined fitting, Compression fittings, Yas Vuam tshuab thiab cov cuab yeej, thiab lwm yam.

Txais tos kom tuaj xyuas peb lub Hoobkas lossis ua qhov kev tshuaj xyuas thib peb.

Txais tos tiv tauj peb rau cov ntaub ntawv khoom thiab kev pabcuam tshaj lij.

Thov xa email mus rau:chuangrong@cdchuangrong.com

Kev piav qhia txog khoom

CHUANGRONG PE100-RC DN20-DN1600 HDPE YEEB YAJ KUB

Cov ntaub ntawv yeeb nkab polyethylene tau dhau los ntawm 4 theem.

Thawj theem pib xyoo 1950, thiab feem ntau yog ua los ntawm polyethylene macromolecules yam tsis muaj ceg; theem ob yog PE80 khoom siv; theem peb yog PE100 khoom siv; theem plaub dhau qhov kev tsim qauv Molecular.

Cov yeeb nkab polyethylene PE100-RC uas muaj zog heev tsis yog tsuas yog tswj tau qhov muaj zog zoo heev, kev hnav tsis kam zoo thiab kev tiv thaiv corrosion ntawm PE100 yeeb nkab xwb, tab sis kuj muaj cov yam ntxwv hauv qab no:

1, Nrog lub zog siab:Cov yeeb nkab polyethylene PE100-RC muaj zog heev thiab ntev dua 500% thaum tawg, muaj zog cuam tshuam loj, tiv taus kev poob siab thiab kev cuam tshuam loj. Nyob rau hauv ntau yam kev hloov pauv xws li av qis thiab av qeeg, cov yeeb nkab yuav tsis tawg thiab muaj kev nyab xeeb siab.

2,Kev tiv thaiv siab rau kev tawg ntawm kev ntxhov siab:Cov yeeb nkab polyethylene PE100-RC uas muaj zog heev muaj zog heev, lub neej ua haujlwm ib txwm muaj ntau tshaj 100 xyoo. Yog tias phab ntsa sab nraud ntawm cov yeeb nkab raug khawb thaum lub sijhawm thauj mus los lossis kev tsim kho, qhov tob khawb tsawg dua 20% ntawm qhov tuab ntawm phab ntsa, vim tias nws qhov kev loj hlob ntawm kev tiv thaiv kab nrib tsuas yog ib feem kaum ntawm cov khoom siv PE100 qib siab, nws tuaj yeem ua kom cov yeeb nkab ua haujlwm ib txwm thiab txuas ntxiv lub neej ua haujlwm. Ib yam li ntawd, thaum qhov tob khawb ntawm cov yeeb nkab PE100 uas muaj zog heev ntau dua 10% ntawm phab ntsa tuab, nws tsis tuaj yeem ua tau raws li cov qauv.

3,Tsis kam khawb:Vim tias qhov nyuaj ntawm PE100 -RC cov yeeb nkab polyethylene uas muaj zog siab dua li ntawm cov yeeb nkab PE100 uas muaj qhov ntom ntom siab, nyob rau hauv tib qho kev khawb, qhov tob ntawm kev khawb raug txo los ntawm 1/3 ~ 1/2 dua li ntawm cov yeeb nkab PE100 uas muaj qhov ntom ntom siab.

4, Kev tiv taus siab rau qhov taw tes thauj khoom:Thaum lub sijhawm ua haujlwm ntawm cov kav dej, phab ntsa sab nraud raug zawm los ntawm cov khoom tawv xws li pob zeb hauv av ntev ntev, tsim kom muaj kev nyuaj siab sab hauv, uas hu ua qhov hnyav. PE100-RC cov yeeb nkab polyethylene siab tawv tuaj yeem tiv thaiv kev puas tsuaj ntawm qhov hnyav, ua rau kev ua haujlwm ntawm cov kav dej muaj kev nyab xeeb dua thiab txhim khu kev qha dua, thiab ua tau raws li kev siv cov kav dej rau 50 xyoo. Thaum lub sijhawm ua haujlwm ntawm cov yeeb nkab PE100 siab, phab ntsa sab nraud raug zawm los ntawm cov khoom tawv xws li pob zeb ntev ntev, uas yuav ua rau phab ntsa sab hauv ntawm cov yeeb nkab loj thiab tawg hauv zos.

CHUANGRONG muaj ib pab neeg ua haujlwm zoo heev nrog kev paub nplua nuj. Nws lub ntsiab lus yog Kev Ncaj Ncees, Kev Tshaj Lij thiab Kev Ua Haujlwm Zoo. Nws tau tsim kev sib raug zoo ua lag luam nrog ntau dua 80 lub tebchaws thiab thaj chaw hauv kev lag luam sib xws. Xws li Tebchaws Meskas, Chile, Guyana, United Arab Emirates, Saudi Arabia, Indonesia, Malaysia, Bangladesh, Mongolia, Russia, Africa thiab lwm yam.

Txais tos tiv tauj peb rau cov ntaub ntawv khoom thiab kev pabcuam tshaj lij.

Thov xa email mus rau: chuangrong@cdchuangrong.com los yog Xov tooj:+ 86-28-84319855

Yav dhau los: Tuam Tshoj Lag Luam Wholesale 180mm Pe Yeeb Nkab Manufacturers - ISO4437 HDPE Yeeb Nkab PE80 lossis PE100 MDPE Yeeb Nkab Rau Kev Muab Roj - CHUANGRONG

Tom ntej no: PE80/PE100 20-110mm Qhov (Socket) / Fusion Stop Valve Lub Tshuab Dej Plumbing

PE100-RC Tiv Thaiv Kev Sib Tsoo Corrosion Resistance HDPE Yeeb Nkab Rau Dej Thiab Roj Av Muab

PE100	0.4MPa	0.5MPa	0.6MPa	0.8MPa	1.0MPa	1.25MPa	1.6MPa	2.0MPa	2.5MPa
Sab Nraud Txoj Kab uas hla (hli)	PN4	PN5	PN6	PN8	PN10	PN12.5	PN16	PN20	PN25
	SDR41	SDR33	SDR26	SDR21	SDR17	SDR13.6	SDR11	SDR9	SDR7.4
	Phab ntsa tuab (en)
20	-	-	-	-	-	-	2.0	2.3	3.0
25	-	-	-	-	-	2.0	2.3	3	3.5
32	-	-	-	-	2.0	2.4	3.0	3.6	4.4
40	-	-	-	2.0	2.4	3.0	3.7	4.5	5.5
50	-	-	2.0	2.4	3.0	3.7	4.6	5.6	6.9
63	-	-	2.5	3.0	3.8	4.7	5.8	7.1	8.6
75	-	-	2.9	3.6	4.5	5.6	6.8	8.4	10.3
90	-	-	3.5	4.3	5.4	6.7	8.2	10.1	12.3
110	-	-	4.2	5.3	6.6	8.1	10.0	12.3	15.1
125	-	-	4.8	6.0	7.4	9.2	11.4	14	17.1
140	-	-	5.4	6.7	8.3	10.3	12.7	15.7	19.2
160	-	-	6.2	7.7	9.5	11.8	14.6	17.9	21.9
180	-	-	6.9	8.6	10.7	13.3	16.4	20.1	24.6
200	-	-	7.7	9.6	11.9	14.7	18.2	22.4	27.4
225	-	-	8.6	10.8	13.4	16.6	20.5	25.2	30.8
250	-	-	9.6	11.9	14.8	18.4	22.7	27.9	34.2
280	-	-	10.7	13.4	16.6	20.6	25.4	31.3	38.3
315	7.7	9.7	12.1	15	18.7	23.2	28.6	35.2	43.1
355	8.7	10.9	13.6	16.9	21.1	26.1	32.2	39.7	48.5
400	9.8	12.3	15.3	19.1	23.7	29.4	36.3	44.7	54.7
450	11	13.8	17.2	21.5	26.7	33.1	40.9	50.3	61.5
500	12.3	15.3	19.1	23.9	29.7	36.8	45.4	55.8	-
560	13.7	17.2	21.4	26.7	33.2	41.2	50.8	62.5	-
630	15.4	19.3	24.1	30	37.4	46.3	57.2	70.3	-
710	17.4	21.8	27.2	33.9	42.1	52.2	64.5	79.3	-
800	19.6	24.5	30.6	38.1	47.4	58.8	72.6	89.3	-
900	22	27.6	34.4	42.9	53.3	66.2	81.7	-	-
1000	24.5	30.6	38.2	47.7	59.3	72.5	90.2	-	-
1200	29.4	36.7	45.9	57.2	67.9	88.2	-	-	-
1400	34.3	42.9	53.5	66.7	82.4	102.9	-	-	-
1600 xyoo	39.2	49	61.2	76.2	94.1	117.6	-	-	-

PE100-RC Cov Yeeb Nkab Polythylene Uas Muaj Zog Thiab Muaj Zog

Tsis yog.	Kev ua tau zoo	Chav tsev	Qhov Yuav Tsum Tau Ua	Qhov Yuav Tsum Tau Ua	Qhov Yuav Tsum Tau Ua
1	Lub zog hydrostatic	h	Tsis muaj kev puas tsuaj, tsis muaj qhov xau	20 ℃, 12.0MPa, ≥100h	GB/T 6111
				80 ℃, 5.4MPa, ≥165h
				80 ℃, 5.0MPa, ≥1000h
2	Kev ntev thaum tawg e≤5 hli	%	≥350b, c	hom 2d 100 hli / feeb	GB/T 8804.3
	Kev ntev thaum tawg 5 hli ＜e≤12 hli			hom 1d 50 hli / feeb
	Kev ntev thaum tawg e> 12 hli			hom 1d 25 hli / feebhom 3d 10 hli / feeb
3	Kev tiv thaiv qeeb qeeb ntawm kev loj hlob ntawm qhov tawg (kev sim yeeb nkab)) en≤5mm	hli/48 teev	<1	80 ℃	GB/T 19279
4	Kev tiv thaiv qeeb qeeb ntawm kev loj hlob ntawm qhov tawg (kev sim yeeb nkab) en> 5mm	h	lub sijhawm ua tsis tiav ≥8760	80 ℃, 0.92MPa (kev sim siab)	GB/T 18476
5	Kev kuaj xyuas qhov txiav tag nrho (FNCT)	h	lub sijhawm ua tsis tiav ≥8760	80 ℃, 4.0MPa, 2% nonylphenol polyoxyethylene ether kua	DIN/PAS 1075
6	Kev sim thauj khoom taw qhia	h	lub sijhawm ua tsis tiav ≥8760	0 ℃, 4MPa, 2% nonylphenol polyoxyethylene ether kua	DIN/PAS 1075
7	Kev tiv thaiv kev loj hlob sai (RCP)	Mpa	Pcs≥MOP/2.4-0.072	-	GB/T 19280
8	Kev Rov Qab Los Ntawm Kev Nias	-	Pcs≥MOP/2.4-0.072	0℃	GB/T 15558.1-2015
9	Kev ruaj khov ntawm cua sov	feeb	>20	200 ℃	GB/T 19466.6
10	Kev ruaj khov ntawm thermal (MFR)	g/10 feeb	hloov ua ntej thiab tom qab ua tiav <20%	5kg, 190 ℃	GB/T 3682
11	Kev rub rov qab ntev (phab ntsa tuab ≤16mm)	%	≤3, tsis muaj kev puas tsuaj rau saum npoo	110 ℃, 200 hli, 1 teev	GB/T 6671

a. Tsuas yog xav txog qhov tawg yooj yim xwb. Yog tias qhov tawg yooj yim tshwm sim ua ntej 165 teev, qhov kev ntxhov siab qis dua thiab lub sijhawm ua tsis tiav tsawg kawg nkaus raug xaiv raws li tus qauv los rov sim dua.

b. Yog tias qhov kev puas tsuaj tshwm sim sab nraum qhov deb tus qauv, qhov kev xeem raug suav hais tias dhau yog tias tus nqi xeem ua tau raws li qhov yuav tsum tau ua.

c. Thaum twg tus nqi kuaj uas xav tau raug ncav cuag, qhov kev kuaj ntawd tuaj yeem raug nres yam tsis tas yuav kuaj kom txog thaum cov qauv puas lawm.

d. Yog tias ua tau, cov yeeb nkab uas muaj phab ntsa tuab tsis tshaj 25 hli kuj siv tau hom qauv 2, hom qauv 2 los ntawm kev siv tshuab lossis molding.

e. Rau cov nqi siab sib raug rau lwm cov koob SDR, saib GB / T 18476.

f. Qhov kev sim RCP yuav tsum tau ua tsuas yog thaum cov yeeb nkab uas tus neeg tsim yeeb nkab tsim tawm ntau dua li qhov tuab ntawm phab ntsa ntawm cov yeeb nkab siv hauv qhov kev sim RCP uas tus neeg tsim khoom sib xyaw muab. Thaum siv qis dua 0 ° C, kev sim RCP yuav tsum tau ua ntawm qhov kub no los txiav txim siab qhov siab tseem ceeb ntawm qhov kub tsawg kawg nkaus. Thaum kuaj raws li GB/T 19280, yog tias qhov kev xeem S4 tsis ua raws li qhov yuav tsum tau ua, qhov kev xeem yuav tsum tau rov kuaj dua raws li qhov kev xeem loj tag nrho, thiab cov txiaj ntsig ntawm qhov kev xeem loj tag nrho yuav tsum tau siv ua qhov kev txiav txim zaum kawg.

Txais tos tiv tauj peb rau cov ntaub ntawv khoom thiab kev pabcuam tshaj lij.

Thov xa email mus rau: chuangrong@cdchuangrong.com los yog Xov tooj:+ 86-28-84319855

Cov kav dej HDPE tau muaj txij li thaum nruab nrab xyoo 50. Qhov kev paub qhia tau hais tias cov kav dej HDPE yog qhov kev daws teeb meem rau feem ntau cov teeb meem kav dej uas cov neeg siv khoom thiab cov kws pab tswv yim engineering lees paub tias yog cov khoom siv kav dej zoo tshaj plaws rau ntau qhov kev siv siab thiab tsis muaj siab los ntawm kev faib dej thiab roj mus rau lub ntiajteb txawj nqus, Cov dej phwj tuaj thiab cov dej ntws rau ob qho tib si tshiab & Cov Haujlwm Kho Dua Tshiab. Chuangrong polyethylene kav dej yog ua los ntawm polytholefin thermoplastic resin uas kuj yog cov khoom siv tsis muaj tshuaj lom, yog li ntawd, nws tsim nyog rau ntau yam kev siv.

Haum rau:

Dej Kev muab khoom. ChuangrongCov kav dej PE yog ua los ntawm cov khoom siv uas ua tau raws li qhov yuav tsum tau ua kom muaj kuab lom ntawm WHO thiab qhov no tuaj yeem siv rau kev thauj dej haus.

-Cov kav dej thiab cov khoom siv nrog qhov ntsuas siab ntawm SDR 7.4 txog SDR 41 rau cov kav dej loj nrog rau cov kav xa dej thiab cov kab kev pabcuam.

- Cov kav dej ntws thiab cov khoom siv rau cov kav dej hauv lub caij nplooj ntoo hlav.

- Cov kav dej nce mus rau qhov dej.

Piv rau cov kav dej ua los ntawm hlau lossis hlau ductile, cov kav dej HDPE yog lub teeb yuag thiab tiv taus xeb. Cov av qaub lossis dej "ua phem" yuav tsis muaj kev cuam tshuam rau cov khoom siv. Tsis tas li ntawd, cov khoom xeb, uas feem ntau ua rau lub kaw lus kav dej tsis ua haujlwm, raug zam. Piv rau cov kav dej PVC, cov kav dej HDPE muaj kev ywj pheej ntau dua thiab muaj kev tiv taus kev cuam tshuam siab txawm tias nyob rau hauv xoom kub. Cov kav dej tuaj yeem hloov kho tau yooj yim rau qhov kev teeb tsa ntawm qhov av yam tsis tas siv cov khoom siv ntxiv. Ntawm qhov tod tes, kev pheej hmoo ntawm kev tawg vim yog kev tuav tes hnyav ntawm qhov chaw tsim kho tau txo qis. Cov kav dej HDPE (spigot thiab socket joints) muaj ntau txoj hauv kev sib txuas longitudinal frictional. Yog li, kev teeb tsa ntawm anchors lossis thrust blocks tsis tsim nyog thiab lub kaw lus kav dej tiv taus qhov xau nrog lub neej ntev tau lees paub.

Haus dej cawv ntau tshaj plaws dej zoo.Qhov tsim nyog ntawm cov khoom siv rau dej haus tau lees paub los ntawm kev sim ywj pheej. Tsis yog qhov saj lossis tsw ntawm cov dej haus raug cuam tshuam vim yog kev sib cuag nrog cov kav dej HDPE. Qhov chaw du thiab qhov tiv taus kev sib txhuam siab lav qhov tsawg kawg nkaus ntawm cov deposits. Polyethylene yog corrosion resistant, yog li ntawd, cov dej haus tsis tuaj yeem raug kuab paug nrog cov khoom xeb xws li tooj liab lossis cov hlau hnyav xws li cadmium lossis lead, uas tshwm sim ntau zaus nrog cov kav dej hlau qub.

Ib puag ncigCov khoom siv zoo rau ib puag ncig huv si. Lub HDPE cov kav dej thiab haum yog tsuas yog ua los ntawm cov khoom siv uas tsis ua rau ib puag ncig puas tsuaj. Piv txwv li, qhov xav tau hluav taws xob rau kev tsim cov kav dej HDPE qis dua vim yog cov kav dej ua los ntawm polyethylene. Kev siv cov kav dej HDPE muab cov kev daws teeb meem zoo tshaj plaws rau ib puag ncig. Ib lub tshuab xau dej 100% tuaj yeem ntsia tau nrog cov txheej txheem vuam yooj yim. Yog li, kev ua rau dej haus muaj kev phom sij nrog cov tshuaj lom raug txo qis. Tsis tas li ntawd, kev poob dej vim yog cov kav dej xau dej raug zam. Tsis muaj lwm lub tshuab xau dej muab cov txiaj ntsig no.

Rau heev kawg li tej yam kev mob. Cov kav dej HDPE tau pom zoo rau kev teeb tsa hauv txhua hom av. Polyethylene yog ib daim ntawv thov hloov pauv ntawm ntau txoj kev sib koom ua ke uas muaj cov khoom siv tiv thaiv kev xau. Vim yog qhov hnyav sib dua thiab cov txheej txheem sib koom ua ke yooj yim, cov kav dej HOPE zoo heev rau cov xwm txheej tsis zoo - rau kev teeb tsa hauv thaj chaw nyuaj.

Kev ntws dej.ChuangrongCov kav dej siv rau kev ntws hauv av rau cov tsev, cov kav dej khib nyiab rau cov kua dej corrosive thiab kuj yog cov khoom siv zoo meej rau cov chaw tsim cov kav dej loj rau cov kav dej phwj. Lawv zoo tagnrho rau kev pov tseg cov khib nyiab hauv kev lag luam thiab siv rau ntau ntxiv raws li cov kav dej phwj hauv av thiab cov kav dej khib nyiab.

Kev lag luam.Cov yam ntxwv xws li kev tiv thaiv xeb, kev teeb tsa yooj yim, lub teeb yuag, thiab kev ywj pheej ua rau cov kav dej chuangrong zoo tagnrho rau cov kav dej nyuaj hauv cov chaw tsim khoom. Lawv zoo tagnrho rau cov tshuaj lom neeg corrosive.

Roj av thiab Cov kav dej roj Cov txheej txheem. PECov kav dej rau kab cov kav hlau carbon kom thauj roj & roj av ntawm qhov siab dua muaj. Cov kav dej tau tsim tshwj xeeb nrog qhov chaw du thiab yooj yim rau kev teeb tsa. Yog li cov kav roj tuaj yeem teeb tsa ntawm tus nqi qis. Hauv kev khawb lawv siv ua cov qhov tua vim lawv pheej yig dua. Vim yog cov khoom zoo heev ntawm HDPE, uas ua rau muaj zog cuam tshuam siab thiab tiv taus cov av hnyav heev. Ua ke nrog kev yooj yim ntawm kev tuav thiab kev teeb tsa, cov kav dej HDPE zoo heev rau kev thauj cov khoom siv thiab lwm yam roj xws li bio-gas.

CHUANGRONG muaj cov txheej txheem kuaj pom tiav nrog txhua yam khoom siv kuaj pom siab heev kom ntseeg tau tias muaj kev tswj hwm zoo hauv txhua txoj kev los ntawm cov khoom siv raw mus rau cov khoom tiav. Cov khoom lag luam yog ua raws li ISO4427 / 4437, ASTMD3035, EN12201 / 1555, DIN8074, AS / NIS4130 tus qauv, thiab tau pom zoo los ntawm ISO9001-2015, CE, BV, SGS, WRAS.