... piece. Also called pipe three or three pieces, three joints, in charge of road to branch.Three with equal diameter and ... has a smaller volume and pressure, when the reach three way pipe bulging out of the required pressure, metal ... in the mold cavity flow along the expansion pipe.Three way hydraulic bulging process can be shaped at a time ... , DL / T 695, SY / T 0510, DIN 2615. Three way pipe insulation