Khoom Muag Khoom Parameter Khoom Lub Npe Zoo Zoo Hoobkas muab sgcc dx51d dx52d z275 galvanized steel ntawv rau kev tsim kho lo lus tseem ceeb galvanized steel Qib Q195, Q235 SGCC, SGCH, SGC340, SGC400, SGC440, SGC570, SG400, SGHHC490, SG400 DX51D, DX52D, DX53D, DX54D S220GD, S250GD, S280GD, S320GD, S350GD, S400GD, S500GD, S550GD Standard AISI, ASTM, BS, Zinc 0 gm2m / JIS 1. -2.0 hli...