A61Y-320P-DN25,A61Y-320P-DN15,A61Y-160-DN15,A61Y-320-DN20,A61Y-160-DN25,弹簧焊接式高压安全阀




3


阀座


2Cr13


1Cr18Ni9Ti




4


阀体


35/35CrMoA


1Cr18Ni9Ti




5

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