Firstly yog qhov ntau thiab tsawg uas peb tuaj yeem ua. Tseem feem ntaucov qhua tuaj noj movcpuas yog qhov no ntau.
Rau cov yeeb nkab puag ncig, peb tuaj yeem ua cov qhov taub ntawm 12 txog 114.3 hli;Flossis duab plaub thiab square, peb tuaj yeem ua 12 los ntawm 12 txog 50 txog 150 thiab 100 los ntawm 100mm. Thickness yog los ntawm 0.5 txog 2.5 hli thiab tuab qhov siab kam tuaj yeem tswj tau thaum + / - 0.03mm. Los ntawm txoj kev, tuab xav tau kev lees paub dua ua ntej tso cov xaj. Nws tsuas yog ib qho thickness nkaus xwb. Zoo li qee qhov loj me ntawm cov kav dej tuab kuj tsis tuaj yeem me me. Yog liNco ntsoov rov qab lees paub dua.Txog qhov ntev, peb tuaj yeem tsim li 4 txog 12 meter. Thiab kav ntev npaum li caspeb qhia yog-0, +20mm.Lwm qhov tseem ceeb yog zinc txheej. Txog rau pre galvanized steel yeeb nkab hauv Tianjin, peb yuav luagtustsuas yog ib tus uas tuaj yeem tsim tawm ntawm 40 txog 275 gram ntawm ib lub 'meter'.
Dhau li, peb kuj muaj peb tus kheej ua cov khw muag khoom rau kev uaib coyeeb nkab precessiong peb tus kheej.Nyiam:Txoj xov, xuas nrig ntaus, txiav, ntsws, khoov, ncu roj, pluavlawv…Xyuas cov duab…
Qhia cov xov,Iyuav tsum tau qhia tshwj xeeb cov yeeb nkab galvanied–conduit yeeb nkab rau koj.Peb tuaj yeem ua EMT (hluav taws xob hlau tubing)yeeb nkab li cov qauv ib txwm muaj. Pls xyuas cov qauv thiab qhov ntau thiab tsawg.
