Lub npe:Cold Rolled Steel Pipe BK BKS Cold Rolled Tube
Txheem:EN1030-4 DIN2391 DIN1630 DIN2445 JIS G3445 SAE J524
Hom: Txias dov / txias kos
Qib: 4140 4130 S45C STKM11A STKM12BE355/ST52ST35/E235 ST37.4 ST45/E255lwm
Loj:OD 4mm-219mm WT0.5mm-25mm
Cov xwm txheej: BK / BKS / NBK / GBK thiab lwm yam.
Mill Test Certificate: EN10204 3.1
Kev ua haujlwm: Khoov / Txiav / Flattening / Flaring