沈阳龙德石油技术开发有限公司
Ifeld drilling overhauling ,and oil extraction.Since the establishmentof,the company,we have achieved 5 national invention patents and 12utility model patents,two of which have obtained liaoning Province Science and Technology Progress Achievement Award.Now we are capable of ma nufacturing 122 various sizes of product of 20 categories for 8 sections, including the independent independnt intellecual property rights. They are being gradually applied to the oil,gas and coal explorations.
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