Gi; PPGI manufacturer / supplier in China, offering Guanxian Building Material Dx51d Z30~Z275 Zinc Coated ASTM Metal Roof Galvanised Container Corrugated Sheet, Guanxian Cheap Construction Materials Corrugated Roofing AISI ASTM DIN JIS GB JIS En Standard Galvanised 8 FT Corrugated Zinc Roof Sheet, Guanxian Dx51 Z30-Z600 Aluminium Zinc Coated PPGI PPGL 6-12m Length Roofing Gauge 32 Galvanized Corrugated Iron Sheet and so on.