... :-250+325mesh -325+500mesh Agglomerated,sintered:45-15um,30-5um Co : 10~13% Fe : max 0.3% C :5~6% Characteristics ... , printing machinery parts, guide roller,pump housings,values, oil drilling tools, wiredrawing machines,blades of ventilating fans in power plants,etc ... using HVOF sprayed ,coating to achieve the effec: WC-12%Co series spraying alloy powder