弹簧微启式外螺纹安全阀 KA21-16C-DN15,KA21-16P-DN15,KA21-16C-DN20,KA21-16P-DN20,KA21-16C-DN25,KA21-16P-DN25
1H-C/A21F材料


A21W-P/A21F-P材料


A21Y-R材料




1


管接头


20


1Cr18Ni9Ti


1Cr18Ni12Mo2Ti




2


管接头螺

01/22 05:15