... propagating ceramic composite steel pipe and fittings, the new generation of wearable and corrosion resistant engineering pipeline, belongs to "863 ... surface, and favorable liquor resistance.The composite pipe is composed of three layers: ceramic, intermediate, and steel layers. The ceramic ... 5, 45, 60, 90, 120, 135, 150 degrees, etc.Three way pipes: Y shaped, Y lateral and other special shapesFour ...