... process. 4.API 6D certificated. 2-pc stainless steel ball valvesAs the professional stainless steel pipe fittings manufacturer, we ... Excellent sealing performance 5) Easy maintenance 6) Widely used in water works, power generating factories, chemicals, food, paper making and ... High quality investment casting body and caps. Product2-PC ball valveMaterialSs201,304,304L,316,316LSize1/4”-2”Thread End ASTM ...