1. Made of pure wool thread or artificial fiber, generally called wool plate or wool reel, divided into single-sided and double-sided. The single side is divided into two types: the hook type and the screw hole.

2. Made of Australian high quality lamb sheepskin as raw material, generally called wool ball,
it can be divided into sticky buckle type, lace type, dish type, etc.

 
3. It is made of a kind of flannelette specially made by planting pure wool on the base cloth, which is generally of the sticky type, divided into two types: long wool and short wool. .