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Associates, Inc.
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Engineering design and drafting services for the natural gas pipelines.
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PanTerra Geoconsultants B.V.
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Geoscience consultancy group providing services to the international oil and gas industry specializing in integrated reservoir studies and consultancy. Based in the Netherlands.
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Puyang Zhongyuan Sanli Industry Co., Ltd.
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Manufacturer of oil drilling auxiliaries in China, offering a diverse range of well drilling, well cementing, and oil extraction chemicals. Also produces glycine.
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