... used for several times and can be recycled6. shorter construction period, longer using time7. high strength and stiffness, ... , ordinary, high strength boltBoltSandwich panel or steel plateRoof &wallPVC or aluminum alloy doorDoorSliding or rolling doorInsulation panelEPS,XPS,Rock wool ... , truss, purlin, color steel plate, multi-storey building projects,etc..2.Our company has more than 200 employees, ...