... 3.High quality , competitive price 4.Fine surfa Precision casting carbon steel flanges1.)Material: Stainless steel(304,304L,316,316L ... galvanize4.)Appactions range: Petroleum,smelting,foodstuff,power,papermaking,chemical,medical equipment,aviation,boiler heat exchanger,and other fields. 5.)Packing: ... be designed and satisfied for customers special requirements. Precision casting carbon steel flanges