Cov yeeb nkab hlau ncaj yog cov yeeb nkab hlau uas nws cov xov sib txuas sib luag rau qhov ntev ntawm cov yeeb nkab hlau. Cov txheej txheem tsim cov yeeb nkab hlau ncaj yog yooj yim, nrog rau kev ua haujlwm siab, tus nqi qis thiab kev txhim kho sai. Lub zog ntawm cov yeeb nkab vuam sib txuas feem ntau siab dua li cov yeeb nkab vuam ncaj.
Cov kav hlau ncaj nraim tuaj yeem muab faib uaERW yeeb nkab hlauthiab cov kav hlau uas txuas rau hauv qab dej arc welded ncaj nraim (LSAW Yeeb Nkab) raws li cov txheej txheem tsim khoom.
Qhov ntev ntawm cov yeeb nkab ncaj ncaj feem ntau yog 6000 mm-1200 mm.
ERW Cov yeeb nkab puag ncig: 21.3mm txog 508mm; LSAW Cov yeeb nkab puag ncig: 406mm txog 2020mm
Lub sijhawm tshaj tawm: Lub Ib Hlis-21-2022