Model: 420,428,428H,520,530 etc. All the part with heat treatment OEM is available Nice packet and strong carton. motorcycle roller chain1,Model: 420,428,428H,520,530 2,good quality 3,compretive price 4,delivery in time 5,all the part with heat treatment6,do as per customer's sample7,packing:design nylon,design box/pkt,design carton TAIWAN carton, and special design as per customer's requestment. ...