A series of metal chain ring or ring.

Chain shaped obstacles to traffic channel (such as in the street, a river or harbour entrance)

Mechanical upload use cast chain.

The chain can be divided into short pitch precision roller chain, short pitch precision roller chain, heavy load transmission plate bending roller chain, chain for cement machinery, plate chain

High strength chain high strength chain a rigging series, professional engineering supporting,manufacturing facilities, supporting the use of production line and special environment.