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Features: 1) The hardness of the chrome coating for thin wall chrome plated liners can reachover HV800 2) The chrome coating of sponge structure is specially processed into platformhoning channel structure containing excellent oil retention, which enables thechrome plated liners to reach quality standards of EURO II and EURO III and thewear resistance reach over 300 thousand kilometers 3) At the beginning of 2006 the liner passed the quality survey by Shanghai InternalCombustion Institute 4) High quality, high efficiency, and low energy cost. But for thin-wall cylinderseries, the internal core chromeplate is the best to meet the specifications forlight weight, heavy load, high speed, low cost, environment protection, lowexhaustion, and high endurable ability. The thin-wall cylinder bush is thesubstitute product for more and more engine cylinder bush both for light andheavy automobiles