China Professional Customized Surface Polishing Silicon Nitride Ceramic Bar Cylinder Shaft Wear Resistant Si3n4 Porcelain Plunger Piston Rod vacuum pump ac system
Product Description Customized Surface Polishing Silicon Nitride Ceramic Bar Cylinder Shaft Wear Resistant Si3N4 Porcelain Plunger Piston Rod. It is an important structural ceramic material, high hardness, itself has lubricity, and wear resistance, atomic crystal; Oxidation resistance at high temperature. Product Description Product Name Customized Surface Polishing Silicon Nitride Ceramic Bar Cylinder Shaft Wear Resistant Si3N4…