... ,GI or PPGI,prepainted galvanized steel coils,GI AND PPGI,,construction and roofing ISO As Shanghai Sangshan Machine Co., Ltd ... ,gi,GI or PPGI,prepainted galvanized steel coils,GI AND PPGI,,construction and roofing Standard: JISMaterial: GI steel, PPGI steelGrad: ... on. Standard exporting seaworthy packingThe use of PPGI1. Construction, indoor and outdoor applications: Roof ,the roof structure, Balcony ...