... Number: 12HT-0135 3.Type: Grinding of polishing . 4. Material: Carbon steel Product description DimensionAccording to customer's ... ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc5. Iron: 1213, 12L14,12156 ... and experienced foundry(investment casting) with ISO-9000 certified.4. Our factory mainly produces various kinds of hardware tools ...