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Address: Hilong Petroleum Mansion 20th FL., Office Building 1, Shimao International Center, 13 North Gongti Road, Chaoyang District, Beijing
Tel: 86-10-84059090 Fax: 86-10-65330643
E-mail: oilservice@hilonggroup.com Postcode: 100027
Website: www.hilongoilservice.com