Welded steel chain is only offered in the "WH" series to ensure you receive the highest strength possible. The WH chain all heat treated components that adds strength and wear resistance over the standard WR series chain. This welded chain is a rollerless style chain, which makes it ideal for dusty environments and where debris may inadvertently come into contact with the chain. These chains also go by the name "Welded Mill Chain". We offer a full line of attachments for OEM's & resellers by quotation. Some of the standard attachments we offer are the A1, K1, A2, K2, A22, H1, H2, F2 & F4 as well as custom made.