YJZF-15F-A50-1NC(4分)塑料头,YJZF-20F-A50-1NC(6分)塑料头,法兰式角座阀 YJZF-25F-A50-1NC(1寸)塑料头,YJZF-25F-A63-1NC(1寸)塑料头, YJZF-32F-A63-1NC(1.2寸)塑料头,YJZF-40F-A63-1NC(1.5寸)塑料头, YJZF-50F-A63-1NC(2寸)塑料头,YJZF-50F-A80-1NC(2寸)塑料头, YJZF-65F-A80-1NC(2.5寸)塑料头,YJZF-80F-A100-1NC(3寸)塑料头, YJZF-15F-B50-1NC(4分)不锈钢头,YJZF-20F-B50-1N(6分)不锈钢头, YJZF-25F-B50-1NC(1寸)不锈钢头,YJZF-25F-B63-1NC(1寸)不锈钢头, YJZF-32F-B63-1NC(1.2寸)不锈钢头,YJZF-40F-B63-1NC(1.5寸)不锈钢头, YJZF-50F-B63-1NC(2寸)不锈钢头,YJZF-50F-B80-1NC(2寸)不锈钢头, YJZF-15F-C50-1NC(4分)不锈钢头,YJZF-20F-C50-1N(6分)不锈钢头, YJZF-25F-C50-1NC(1寸)不锈钢头,YJZF-25F-C63-1NC(1寸)不锈钢头, YJZF-32F-C63-1NC(1.2寸)不锈钢头,YJZF-40F-C63-1NC(1.5寸)不锈钢头, YJZF-50F-C63-1NC(2寸)不锈钢头,YJZF-50F-C80-1NC(2寸)不锈钢头,