... 3.make different colors of spraying 4.certification:ISO9001,RoH Detailed Product Description1. ISO9001:2001 2.. Size: As per customer design 3.Material: Iron ... , carbon steel, stainless steel, aluminum, brass, copper, SPCC, SECC, SGCC, SPHCThickness: As per customer ... and othersSupply Ability:50000 Piece/Pieces per Month various hardware shell various