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
G1


44


50


100


66




20


10


20


31


M391.5


G1

01/22 12:24