... is formed by the main steel framework linking up H section, Z section and U section steel ... in to normal type, sliding type or roll up type with material of PVC, metal, alloy ... machine, Hydraulic sheet metal blending machine, Gantry submerged arc welding machine, Corrugated sheet molding machine, Shot blasting machine, Punching machine,Drilling Machine, Forging machine, H-section assembly machine ...