ob电竞体育（中国）网络有限公司成立于2004年11月18日，公司原名富凯(张家口)矿业设备有限公司，是英国富凯工程集团帕森斯公司和中国中煤张家口煤矿机械有限责任公司共同投资建立的中外合资有限公司。2008年4月，波兰国润资本集团有限公司于2008年4月收购了英国FKI工程集团公司帕森斯公司在我公司的股份，同中方股东决定扩大投资继续经营并获得了政府相关部门的批准。相应地，公司名称变更为国润（张家口）工业技术有限责任公司，注册资本增加至353万美元，增加投资后，公司决定新建生产接链环生产基地，扩大生产规模，以满足市场日益增长的需求。2012年新厂区建成，占地40亩，年生产接链环可达50000件。

2017年4月，经董事会批准，中煤张家口煤矿机械有限责任公司全额收购外资股份，目前公司为中煤张家口煤矿机械有限责任公司全资子公司。国润（张家口）工业技术有限责任公司更名为ob电竞体育（中国）网络有限公司。 公司生产的产品为链锁式、V锁式、弧齿式、T齿式等各种形式、各种规格的矿用接链环，主要用于煤矿井下刮板输送机链条的连接，其中链锁式和V型锁式接链环，专门与D级圆环链配套，是重要的传动部件。公司所有接链环均为毛坯为精密锻件，从英国进口，加工和热处理在我公司完成，生产工艺完全按照帕森斯公司原工艺执行。加工设备均为数控加工中心，热处理设备为易普森可控气氛多用炉。目前，产品遍及国内各大煤炭生产企业，并有部分出口到国外。

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Our company which is formerly known as FKI (Zhangjiakou) Mining Equipment Co., Ltd., was established as the joint venture between Britain FKI Parsons Company and China Coal Zhangjiakou Coal Mining Machinery Co. Ltd, in November 2004. The company mainly supplies industrial conveying accessaries and components and provides design, production, sales 

In April 2008, with the approval of the board meeting, the joint venture has had its Parsons’ equities transferred and purchased by Poland Gwarant Capital Group, which agreed to expand its investment along with the Chinese shareholders. Meanwhile, FKI (Zhangjiakou) Mining Equipment Co., Ltd. Changed into Gwarant (Zhangjiakou) Industrial Technology Co., Ltd. (GIT) with the registered capital up to 3.53 million U.S. dollars.  The new production plant which covers an area of 24946m2 has been built up in 2012 after the investment has been increased and the production can reach 50000 pieces one year. Meanwhile GIT increase the product range and expand the production capacity for meeting the growing demand of the market.

In April 2017, with the approval of the board meeting, the joint venture had been purchased by China Coal (Zhangjiakou) Coal Mining Machinery Co., Ltd and became the wholly-owned subsidiary.

The major products in the company are the series of chain locks 、 vertical locks、arc-tooth connectors and T-tooth connectors, which equipped to connect the conveying chain of underground coal mining AFC conveyor. It can be matched with round link by G10 grade, and function as the key components in transmitting system. Products come out of the imported precise forgings, designs by Parsons Chain Company UK, which then machined and heat-treated in our company by means of CNC machine and Epson air-controlled furnace. The Whole produce process was controlled in full accordance with the Parsons standard and was made by CNC machine. At present, the products are distributed across al