1. The chain includes four series: transmission chain;
Conveyor chain;
Pulley chain;
Special specialty chain
2. A series of chains or rings, often of metal: chains (as at the entrance to a street, river, or harbour) used to block traffic;
The chain used for mechanical uploading;
3, the chain can be divided into short pitch precision roller chain;
Short pitch precision roller chain;
Bent plate roller chain for heavy load transmission;
Cement machinery chain, plate chain;
High strength chain.
