... between purlin/column/beamBoltanchor,ordinary,high strenght boltRoof &Wallsandwich panel or steel plateSandwich panel materialsEPS, polyurethane, rock wool, glass woolWindowPVC or aluminum ... machine, CNC hydrauic shearing machine, Hydraulic sheet metal blending machine, Gantry submerged arc welding machine, Corrugated sheet molding machine, Shot blasting machine, Punching ...