PTJ-2005型206(207)转向架制动梁滚子轴磨耗套破套机简介
PTJ-2005형206(207)전향가제동량곤자축마모투파투궤간개
Brief Description of the Roller Shifts for Brake Beams Wear Sleeve Breaker for PTJ-2005 Type 206(207) Bogies
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