Kev lag luam xov xwm
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Cov kav dej twg yog qhov haum rau cov yeeb nkab txuas?
1. Galvanized steel yeeb: Nws yog welded nrog kub dip txheej lossis electrogalvanized txheej rau saum npoo. Tus nqi pheej yig, muaj zog dua, tab sis yooj yim rau xeb, raj ntsa yooj yim rau teev thiab cov kab mob, lub neej pabcuam luv. Galvanized steel yeeb nkab tau siv dav ...Nyeem ntxiv -
Qhov tsis yog-excavation technology ntawm hdpe pipeline
Hauv cov hauv nroog hauv av, cov raj xa hluav taws xob ntev rau cov raj xa dej txuas mus ntev tau thiab tsis pom. Thaum twg cov teeb meem xws li deformation thiab to tsis muaj tshwm sim, nws yog yam tsis muaj tshwm sim uas nws xav tau "qhib, uas coj kev zoo heev ...Nyeem ntxiv -
Cov neeg nyob hauv Edwardville tuaj yeem tos ntsoov kho kom rov qab rau txoj kev taug ko taw, cov dej phwj tuaj thiab txoj kev ntawm lub caij ntuj sov no
Ua ib feem ntawm lub nroog kev txhim kho peev nyiaj tau los, txoj kev taug ko taw uas zoo li qhov no yuav raug hloov mus sai dua lub nroog. EdwardVilleville-Tom qab City Council pom zoo ntau yam phiaj xwm kev ua haujlwm rau hnub Tuesday, cov neeg nyob thoob plaws lub nroog yuav pom Upcomi ...Nyeem ntxiv
