タイトルまたは説明

It's a proven extensively used drilling fluid additive having many fine properties. Oil asphalt is basal raw material. It appears brown in easy breakable pieces or fluidized powder. Its density is 0.*8g/*****'s partly water soluble partly oil soluble for every kind of drilling fluid. Our factory is the first manufacturer in China. The product includes two types of high water soluble sodium sulfonated asphalt FT