折磨
发表于 2025-4-1 03:21:51
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遣返回国
发表于 2025-4-1 07:31:57
New MAHLE steel piston and pin coating system for reduced TCO of CV engines,al friction welded designs. Using this benefit to reduce side forces by a longer connecting rod, the full friction reduction potential is achieved by a combination with a new low friction carbon based coating on the piston pin. The new coating shows best-in-class performance in terms of friction and
是突袭
发表于 2025-4-1 11:55:21
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贸易
发表于 2025-4-1 17:45:06
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