Sleeve compensation offer, Serco supply material (certified), compensation is provided by Serco Gongyi City Water Supply Materials Co., Serco Gongyi City Water Supply Materials Co., Ltd. (www.gyxjbcq.com/) is specialized in the "PTFE lined rubber joints, standard waterproof casing, duckbill valve, power connector, stainless steel, rubber joints" of the enterprise, the company adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Zhang. Works bellows, is the use of hydrodynamic theory of Pascal, in the design of the structure clever use of a dense ring steam room, the steam-room were two annular pressure surface, a fixed compensation of steam interior end face of the sleeve Quotes, the other is in the vapor chamber enclosed telescopic tube shoulder annulus, with the telescoping tube is movable. The movable area of ??the annular pressure receiving surface and the bellows cross-sectional area is exactly equal. The second is that if it is poor, then the rubber sleeve joint compensator model, it will have a certain lack of hardness sleeve compensation price, because the rubber joints not only have a certain degree of flexibility, its hardness is to have, so if hardness of the rubber joints can not reach the quality of the rubber joints are not very good; the third is of poor quality rubber joint appearance of bubbles will appear, maybe even delamination phenomenon.