? How to make double wear elbow wear elbow price stamping and welding and pipe elbow is the use of the same material as sheet metal stamping die stamping ring halves elbow, then two half-rings were set for welding forming elbow . Because different types of pipeline welding standards, usually in groups of semi-finished factory tack, site construction grade welded pipe welds in accordance, therefore, also known as the two halves welded elbow. Stamping elbow is powered by means of conventional machining or special stamping equipment, the plate material in the mold directly affected by the deformation force and deformation, and thus obtain a certain shape, size and performance of product parts production technology. Sheet, tooling and equipment are the three elements of stamping. Stamping is a metal cold deformation processing methods. So, is called cold stamping or sheet metal stamping, stamping short. It is one of metal plastic processing (or pressure) of the main method, engineering and technology is part of the material forming the tubing 125 125 tubing pipe factory price pump tubing 125 and 150 are generally divided into two types, both of which in turn each There are high and low points of the low-pressure pipe .125 pump models Φ133 outer diameter pipeline, the high pressure of the outside diameter of the pipe is Φ140; 150 tubing outside diameter low-pressure model is Φ159 pipes, high pressure to the outside pipe diameter is Φ168. ferrule tubing is specially processed fittings, connected by welding to the tubular body, the connection of each pipe is processed via a tube to connect the card casting process. tubing tube head is specially processed fittings, connected by welding and pipe connection of each pipe is processed by the control card connected by casting process. And other concrete pump pipe and solid steel bar compared to the same torsional strength in bending, lighter, is an economic cross-section tube, widely used in the manufacture of structural parts and mechanical parts. Manufacturing annular parts with concrete pump pipe, can improve material utilization, simplify the manufacturing process, saving materials and processing time, high wear-resistant pump tube has advantages and performance of abrasion resistance and lightweight tubular body weight, is my company and foreign customers to develop and produce a new type of high wear-resistant products