... factory 3. SGS approved 4. low price, high quality 5. material :brass,bronze and copper About us Brand NamePlace of OriginStandardxinxinZhejiang China ... 2'' - 2''Grade G100 - G1000Application Mainly used for valves and craftwork , switch and aerosol dispensers , instrumentation , pressure gauges , water meter , ... 08≤0.005≤0.002≤0.01≤0.5Remainder high polish and durable brass sphere ball( SGS approved)