long stroke pumping unit
短语词组
- new -style and long-stroke pumping unit 新型抽油機
- fan -shaped horsehead long-stroke pumping unit 扇形驢頭長沖程抽油機
- type long stroke pumping unit 鏈式長沖程抽油機
- chain -type long stroke pumping unit 鏈式長沖程抽油機
- long -stroke chain pumping unit 長沖程鏈條抽油機 返回 long stroke pumping unit