... natural,black,blue,yellow5)pre stretch and anti fatigue to make chain life longer6)manufacture and OEM7)packing :1pc/pp bag ... 2052,2060,2062,2080,2082 and with H series5)agricultural chains:C212A series,ZGS38 combine chain series,3558T, rice harvester ... chains attachments6)simplex, duplex, triplex chainsThe Chain technic treatment is ...