cov khoom lag luam nthuav dav
Qhov loj me: Cov taub dav 21.3 hli txog 219.1 hli
phab ntsa tuab 1.2 hli mus rau 12.75 hli
ntev 2.5 mus rau 12m
Txuj: GB BS EN ASTM API JIS
Nto: oiled / galvanized / xim tha xim dub
Daim ntawv thov: txoj kev loj ntawm kev tiv thaiv, scaffolding, tsev cog khoom laj kab, khoom siv kis las ua si.
Lub sijhawm xa tuaj: 30-40days
ntim: khoom xa tuaj
Kev Them Nyiaj: L / C thaum pom lossis T / T
hom kev thauj mus los: kev thauj khoom hiav txwv
kev ua cov khoom: xov, drilling, shrinking, khoov.
Cim npe nrov: astm a53 welded carbon round steel yeeb nkab, ua nyob rau hauv Suav teb, tuam ntxhab, cov chaw muag khoom
