公司在太原市龙盛钢材市场南40号设有钢材销售部，同时，在离石，汾阳设有办事处。
Longsheng in Taiyuan steel market with the South 40 Sales of steel at the same time, in Lishi, Fenyang offices.
从油中分离石蜡的过程，首先进行冷冻(帮助生成石蜡晶体)，然后用板框式压滤机在压力下进行过滤。
The process of separating wax from oil by first chilling (to help form wax crystals) and then filtering under pressure in a plate and frame press.
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