The company also operating seamless steel tubes and energy-saving equipment.
中居前列。公司还经营无缝钢管和节能器材。
It was undergoing renovation so that it could be fitted with energy-saving equipment.
这幢住宅楼正在进行节能设备安装的改造工程。
The flue gas turbine is the important energy-saving equipment in present petrochemical enterprise.
烟气轮机是石化企业催化裂化过程中重要的节能设备。
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