Manufacturer of pre-galvanized steel pipe OD:20mm-219mm WT: 0.5mm - 2.5mm ... delivery Zinc:60-120g/m2 Details: Product namepre-galvanized steel pipeSpecification20mm-219mm*0.5mm-2.5mmMaterialQ195-Q235StandardsBS1387, GB/T3091, ... ,welding, stamping, painting, oiling, cutting, grooving, drilling, etc.Usage industryfence post, construction, architechure, agriculture and some other structure ...