welded chain guide - Tuohai Chain Products Co.,Ltd
Grade 30 Chain. G30 welding chain is also called grade 30 proof coil chain, which is a very versatile welding chain. This kind of chain is made of mild steel and is usually used as a drag chain, logging chain, binding chain, safety chain, etc. Grade 40 Chain. The grade of G40 is the similar as G43.
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