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For water treatmentDrilling Mud CorporationFloor 6,7, Vietnam Petroleum Institute Building, No 173 Trung Kinh street, Yen Hoa Ward, Cau Giay District, Hanoi Tel: (84.4) 35140350 - (84.4) 38562861; Fax: (84.4) 38562552Email: dmc@pvdmc.com.vn; Website: pvdmc.com.vn
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