Galvanized Steel Coil G550 Z275 Suzhou Gwb Steel Co., Ltd Base Info Model NO.:G550Standard:ASTM, JISCertification:ISO Description Pre:Construction Cold Drawn AISI 201 304 316 2b Surface Seamless or Welded Stainless Steel Pipe Next:China High-Speed Tool Steel Manufacturers M42 M35 T42 M7 M3-1 M3-2 M2