Yanchang Petroleum Yan'an kerosene gas comprehensive utilization project
Release time:2016-07-28 09:46:30| Views：
The company successfully won the bid for the bid section of welded pipe fittings of Yanchang Petroleum Yan'an kerosene gas comprehensive utilization project
Record No：冀ICP備16019653號-1Copyright：COPYRIGHT：Hebei Yihai pipeline Group Co., Ltd.
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