... weight: 3-5 MT/coil9: Base materials: Hot-dipped galvanized steel or color steel10: Standard & Grade:JIS G3312: CGCC, CGC340, ... CGC400, CGC440, CGC490, CGC570ASTM: CS, FS, SSEN10326: S250GD, S280GD, S320GD, S350GD, S550GDEN10327: DX51D+Z, DX52D+ZCertificate ... packing, 4 eye bands and 4 circumferential bands in steel, galvanized metal fluted rings on inner and outer edges, ...