... , Tees, Crosses, Laterals . We provide series of high pressure integral fittings and welded fittings, including Wyes, Elbows ... to 140MPa). The integral connections made of high strength alloy steel are all heat-treated to ... or thread pipes. They are forged of high strength alloy steel, and machined by NC machine ... crossovers as per customers' requirements. high pressure fracturing piston pump parts