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What material is the valve CK20 made of? And what material is Lewmet used for in the internal components? I don’t seem to have seen it before

2010-06-21View Original

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What material is the valve CK20 made of? And what material is Lewmet used for in the internal components? I don’t seem to have seen it before
Reply #22010-06-21
It seems to be a German standard; CK20 is equivalent to GB 20#. The Lewmet alloy is a material developed by the renowned American company Lewis. LEWMET alloy materials possess unparalleled corrosion resistance.
Reply #32017-11-24
ASTM A351 CK20 austenitic stainless steel cast steel

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Translated at 2026-07-27 03:43:08

Original: https://bbs.hcbbs.com/thread-686475-1-1.html

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