... , and total 19 steps including conveying, turning, welding, heading, and deburring of chain rings are done continuously via cam, electric ... circular ring chains, it can also be used for welding of other kinds of circular ring chains such as antiskid chain, decoration ... chain, manual hoist.About our companyHANGZHOU XINJIAN ELECTRINOC CO., LTD. is a ISO9001 certified manufacturer, and also is a hi ...