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Qinhuangdao Yan Motors and Machinery Co., Ltd. is one of China's largest supplier pipeline underground . Our downhole drilling motors are widely used in various environments , such as oil, gas , mining and water well . Main products are drill and screw , we provide almost all models and structures. Other products as well as ISO, ANSI, JIS, DIN, GB, HG , such as standard carbon steel , stainless steel, alloy steel pipe , elbows , flanges, reducers, tees , caps and other series of high, medium , low-pressure pipe fittings. We can make our products at a very high level of durability, effectiveness , and technical aspects of the production of original and custom pieces through . Zhong Yan has a staff of its own factories and many superb technology in advanced equipment and professional technicians under the leadership team , we will be your best choice. |
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