Our factory has strong technical strength and the ability of product development, production and evaluation. Our products have been used in Shenyang Oil Production Plant and Shuguang Oil Production Plant of Liaohe Oilfield since 1991. They have been supplied to PetroChina Changqing Oilfield, Huabei Oilfield, Jilin Oilfield and Daqing Oilfield. Our products have been applied in Anshan Iron and Steel Co., Ltd., Bengang Steel Plate Co., Ltd., Tiemei Group, Longmei Group and other units. Our products are of reliable quality, and our product technical indicators have always been in a professional position and have strong technical service capabilities. The quality and service of our products have been well received by users.