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Bellows thin-work test equipment
Curling mechanism at the buckle of automobile exhaust pipe
Invention patent certificate An exhaust system welding device for automobile exhaust treatment
Utility model patent certificate A coating device for automobile exhaust gas treatment catalyst
Utility model patent certificate A cutting device for processing automobile exhaust system pipelines
Dredging pipeline purifier for automobile exhaust pipeline purification
Invention patent certificate A kind of automobile exhaust gas treatment catalyst and its process.
Invention patent certificate A preparation method and application of a catalyst for purifying nitrogen oxides.
2024-Invention patent A kind of automobile exhaust system pipeline bending.
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Chengxi Industrial Park, Jingxian County, Hebei Province
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