The system of claim 1, wherein the two-way sleeve compensator, characterized in that for sealing the left, and right ends of the inner and outer ring can be solid core may be imaginary circle that is the core of the ring the intermediate annular wedge cones opened "V" shaped annular groove configuration axial pressure corrugated compensator, which may be a trench or may be a plurality of inner and outer seal can use real core may also be used at the same time virtual core may also be mixed. Sleeve type compensator device should keep the manufacturer compensation, to prevent the sun and rain and dust pollution. The use of modern network outstanding features invisible market, to achieve tangible market and intangible markets simultaneously, expand sales channels, and tap business potential, and actively explore the international market, in order to allow enterprises to truly come out from the predicament. Metal compensation if they want to really participate in international market competition, corporate restructuring and upgrading is a prerequisite. Currently rely on quality of existing products can not compete with giant international market competition, only through industry consolidation, upgrading, comprehensive upgrade product quality, in order to have the right to speak and the initiative in participating in international competition. Duct rubber compensators | compensators Luoyang | Serco supply materials are provided by Serco Gongyi City Water Supply Materials Co., Ltd. Gongyi City Water Supply Materials Co. Serco (www.gyxjbcq.com/) strong, credible, in Zhengzhou, Henan valve industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Serco water into the brilliant material and you work for a better future!