Coal mining method and technics are core of high production and efficient mine's building.
采煤方法及工艺是高产高效矿井建设的核心。
The die proved to be feasible in structure and high efficient in production.
经生产验证，模具结构合理、生产效率高、 经济效益显着。
Powerful and efficient production capacity to provide high quality products.
强大高效的生产能力为客户提供高品质的产品。
Powerful and efficient production capacity to provide high quality products.
强大高效的生产能力为客户提供高品质的产品。
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