Wholesale Check Valve Product Description锛?/strong> Structural formation: Wafer-Type Design standard: API 594 Face to face: ASME B16.10 Flanged Ends: ASME B16.5 Test & inspection锛欰PI 598 Standard Material Specification No.PART NAMEMATERIAL 1BodyASTM A216-WCB ASTM A351-CF8/CF8M/CF8C/CF3/CF3M 2DiscASTM A216-WCB ASTM A351-CF8/CF8M/CF8C/CF3/CF3M 3SpringAISI9260/AISI6150 ASTM...