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Honghua Group – Leading Chinese manufacturer of drilling rigs for oil, gas, and water wells. Website: http://www.hhcn.com
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Sinopec Oilfield Equipment Corporation – Produces drilling rigs and oilfield equipment. Website: http://www.sinoec.com.cn
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Baoji Oilfield Machinery – Manufacturer of drilling rigs and related equipment. Website: http://www.bomco.com.cn
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Lanzhou LS Petroleum Equipment Engineering – Specializes in drilling rigs for petroleum industry. Website: http://www.lspe.com.cn
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Jereh Group – Produces oilfield equipment including drilling rigs. Website: http://www.jereh.com
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Kerui Petroleum – Manufacturer of drilling rigs and oilfield services. Website: http://www.keruigroup.com
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RG Petro-Machinery Group – Specializes in drilling rigs for oil and gas exploration. Website: http://www.rg-group.com
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Sichuan Honghua Petroleum Equipment – Produces drilling rigs for various applications. Website: http://www.hh-petroleum.com
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Zhejiang Jianhua Drilling Rig Factory – Manufacturer of water well drilling rigs. Website: http://www.jianhuadrill.com
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Shandong SINOCORP Drilling Equipment – Specializes in water well and geothermal drilling rigs. Website: http://www.sinocorp.cn