... the best stainless steel ball valve parts manufacturers manufacturers and suppliers in China, equipped with a professional stainless steel ball valve ... Key Specifications/Special Features:Materials: plastic, Delrin, nylon, PTFE, stainless steel, 15-5PH, 13-8MO, 17-4PH, 304, 316, ... aluminum (2024, 2011 and 5052, 6061, 7075), steel and brassSurface treatment: zinc plating, chrome plating, powder coating ...