... sleeve,wearing bush, and other nonstandard parts for pumps3.Sandblaster nozzle, refractory tile, valve parts,and other parts Covers the fields as below:1 ... :Granulation-compression moulding-sintering-grinding -finishing and finingthe inspection for each step of the production is conducted strictly.Any questions ... reply you as soon as I received it next day. Silicon Carbide(SSIC & RBSIC)pump spare parts