8 Years
We are professional 117-4pH(UNS S17400,1.4542,AISI 630,17-4 pH,17/4 Ph)Forged Forging Steel Nickel Plating Plated Mechanical Seals Discs factory from china Chemical: C Si Mn Cr Ni Cu Nb S P ≤0.07 ≤1 ...
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