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BFM1013 liner 04207697 04253772 04253771 04203065 04200255 04282014 04253936
Liner 04253771 processing process: Blanking----Rough Turning---Heat Treatment----Flat Chamfering----Rough Pushing Inner Hole---Rolling Inner Hole----Processing Outer Circular Open Frame Socket----Processing Inner Hole stop----welding cylinder bottom----processing outer circle-internal galvanizing
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