1.ISO 9001:2008 certified 2.OEM manufacturer 3.+/-0.01mm tolerance 4.QC inspect after products finished ... lead time (7-30days according to order qty) 4. Customized size and spec /OEM available5.Near shenzhen ... ), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc.5. Iron: 1213, ... transportation or as required metal mobile phone part for touch screen