... COATING 5.ALL RAL NO. Shandong Star Steel Sheet Co,. Ltd. having one PPGI line and one GI line ... commercial quality DQ: drawing quality Base metal: HGI, CRCoating materials: Polyester Colour choice: All RAL colour is available.Usage: ... use ,roofing, commercial use, household appliance, industry, familySPECIALAPPLICATIONWear resistant steel, high- strength - steel plate CERTIFICATE (ISO9001:2008)