The company has passed ISO9001: 2000 international quality system certification, product quality comprehensively implement the ISO9001: 2000 standard, with advanced production equipment, strong technical force, our products are sold in the market with a new high quality products by domestic unanimously respected foreign customers. Boom by extraordinary material steel tube through the inner arm hardening, carburizing chemical treatment, flanged bushings reach 58-60 degrees of hardness, pipeline progress 3-5 times lifetime use, transport users to throttle the effort and cost, eliminating the Often tube replacement trouble, progress production efficiency. The odds and ends as a top priority to improve the quality products. Our strength is strong skills, excellent supporting equipment, technology advances predecessors, testing trick completely, the introduction of domestic progress predecessors skills, develop the production of double-resistant, high-quality alloy mother was chosen Baosteel tubes, reliable information, accurate weighing (load is required guarantee the normal operation of the boom) inner hardness value of HRC55-62, outer depth of hardened layer 2-2.5mm soon as antiknock HB200-220 maintenance layer, so The tube has superior abrasion resistance and impact resistance by users. Many Boom supply pipe supply Chamber chemical compatibility table. But the engineers should be aware that should be used exclusively for the boom control given chemical compatibility table, rather than popular pipeline formulated chemical compatibility table. Since the popular chemical substances as long as ordinary pipe sexual contact, and boom tube is under pressure contact with the chemical fluid premise, therefore, the level of chemical compatibility level of chemical compatibility with popular boom pipe conduit can not equal. Thus, it should only refer to the pump tube, rather than the level of the chemical compatibility of the pipeline and related substances ordinary, or make out the effect of the boom tube leakage crack or breakage, resulting in the formation of the pump damage or risk of accident. Boom tube chemical resistance can be reduced as the temperature increases. Some chemicals at room temperature, although the pump tube is not composed of the impact, but when the temperature rises to a certain level, will be on the jib tube formation damage. In the chemical compatibility of the table to indicate the specific circumstances inevitable premise restrictions, especially the temperature limits, in order to determine the chemical compatibility. 40 How to identify the quality of the concrete pump tubing pipes to pump low pressure pipe price how to identify quality tubing and fabric machines. First, concrete pump tube depends on their quality of his material: concrete pump pipe to be divided into: straight seam pipe, fluid pipe, seamless pure. From the appearance to be able to tell the difference, and in turn increase the price, volume and hit the concrete square price is directly proportional. Second, the quality and thickness of the tubing to a relationship, too, and the weight of a relationship, so when sourcing suppliers ask each concrete pump tube thickness and weight, it is best reflected in the contract inside. Third, the quality has to pump tubing and flanges at both ends of the quality of a relationship. Fourth, the quality and weld quality at both ends of the flange and the pipe body related to the pump tubing. Tubing 125 and 150 is generally divided into two kinds, and they all have both high and low pressure points .125 pump tube outside diameter is a low-pressure pipe Φ133 model, the high-pressure pipe outer diameter is Φ140; 150 The low-pressure type pump tubing outer diameter is Φ159 pipe, high pressure pipe outer diameter is Φ168. ferrule tubing is specially processed fittings, connected by welding to the tubular body, the connection of each pipe is processed through the casting process pipe to connect the card. ferrule tubing is specially processed fittings, and pipe by welding