... Zinc-coatingSteel gardesTDC51D2,TDC51D+AZ,TDC51D, GR.A, GR. B, SPCC, SPHC, DX51D,ect.StandardJIS G3302, JIS G3313, ASTM A653, GB ... details: 1) Standard:GB,JIS3312.ASTM2) Material: SGCC,Q195-Q235B,SPCC,DC01,DX51D+Z ETC.3) Thickness: 0.14-1.2mm4 ...