In the bidding for a large-caliber heating pipeline project near Zhengzhou, Henan Province, China, four companies won the bid. The project is a total length of more than 20 kilometers and divided into 7 sections. The whole pipeline adopts Ф1380mm-2000mm diameter pipe, and the production pipe is Ф1890mm type insulation pipe production line. Among them, Jiaozuo High-tech and other two companies chose to use the insulation pipe production line of Qingdao Huashida Machinery Co., Ltd. to produce heating pipes. It is reported that the insulation pipe production lines of these three customers will be delivered at the end of March or early April.
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