... -3, ISO9001:2008 3.Benz's supplier deep drawing rack for Building IndustryMaterialiron or other metal meterialServiceOEM, ODMQualityISO9000:2008 , EN15085-2, ISO3834-3Techniquewelding ... , carbon steel, aluminum, zinc, brass, plastic etc.Making process: Stamping, deep drawing, bending, punching, threading, welding , tapping, riveting, grindingSurface treatment: Hot galvanized ...