... certified 2.OEM manufacturer 3.+/-0.01mm tolerance 4.QC inspect after products finished 5.Steel A: ... Short lead time (7-30days according to order qty) 4. Customized size and spec /OEM available5.Near shenzhen ... C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc.5. Iron: 1213, 12L14 ... as required metal mobile phone part for touch screen