A series: 08A,10A,12A,16A,20A,24A etc.& douplex and tripplex
Bseries: 08B,10B,12B,16B,20B,24Betc. &douplex and triplex
CL,OL both standard roller chains and nonstandard chains.

Majior product is :A and B series roller chain,straight side roller chain,
H series of roller chain, motocycle chain ,other roller chain.
Zinc-plated,Nickel-plated,Docromet-plated.
Standard of ANSI,ISO,DIN,BS