他们受雇于建筑公司，水泥和混凝土承包商和预制混凝土产品的制造商，或者他们可能成为自雇人士。
They are employed by construction companies, cement and concrete contractors and manufacturers of precast concrete products, or they may be self-employed.
由于原材料涨价、而销售价格因市场竞争上涨缓慢，混凝土产业处于微利状态，给公司带来一定压力。
As the prices of raw materials, while the sales prices in the wake of rising competition in the market slow, low-profit status in the concrete industry, a certain pressure to the company.
我公司是生产膨润土产品的专业生产商，已经通过ISO 9001： 2000产品质量认证，并拥有进出口经营权。
I company is manufacture Bentonite pin profession manufacturer. I take charge of take the lead through ISO9001:2000 product quality authentication, and has the import and export right of management.
公司主营有色金属、矿产品、稀土产品及电缆材料的国内国际贸易业务。
The company handles the domestic and international trade of ferrous metals, mineral products rare earth products and cable materials.
公司主营有色金属、矿产品、稀土产品及电缆材料的国内国际贸易业务。
The company handles the domestic and international trade of ferrous metals, mineral products rare earth products and cable materials.
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