铸造件，机加工件，紧固件，法兰，冲压件，井盖等。
Casting parts, Machined parts, fasteners, flanges, stamped parts, well LIDS and the like.
铸造件，锻造件，机加工件，各种机车部件，机电部件等清洗。
Cleaning of castings, forgings, machining parts, various locomotive components and electromechanical components.
铸造件，锻造件，机加工件，各种机车部件，机电部件等清洗。
Cleaning of castings, forgings, machining parts, various locomotive components and electromechanical components.
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