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

50


100


105




A21W-160/160P


15


8


20


/


M242


G1


44

01/22 08:40