oil casing pipes

The inspeciton equipments for the oil casing pipes is not a "white elephant ". I have to say because of the prices is cheaper and cheaper. In order to have the cheaper price to obtain a chance to grasp a client.The factory had been raked his brains. Try to do anything that can low down the cost. This things happen not only in the small factory but also some big factory. Oil casing pipes application is mainly on oil filed. The quality is very important. We can not low down the quality to low down the price. We insist our principle quality first, price second, clients first.