National Standard Hard Coal Tar Pitch , High Temp 0.35% Ash Coal Tar Products

National Standard Hard Coal Tar Pitch , High Temp 0.35% Ash Coal Tar Products

Cheapest Hard Pitch Soften Point 130-138 ℃ High Temperature Coal Tar Pitch High temperature coal tar pitch used for refractory, Waterproof material ,burden and Foam mud. 1. Coal tar pitch is used to ...