Located at First 10, North Jiuxianqiao Road, Chaoyang District of Beijing, Beijing Changyu-Lihua Hydraulic Systems Engineering Design Co. Ltd. is a subsidiary company of Zhangjiakou Great Wall Hydraulic Cylinder Co., Ltd., engaged in designing and producing non-standard hydraulic equipment and hydraulic system, such as seamless steel pipe cold-drawing machine, hydraulic system for engineering, automobile, aviation, ship building, mining industry, high-speed train and so on. The products involve 8 series and 600 varieties. Main equipment we produced are 160T/250T/400T/600T/1000T/2000T precision cold-drawing machine, with a stroke up to 19m and a dimeter from 32?900mm; semi-auto/automatic straightening machine, steel pipe ultrasonic defect detector, digital controlled hydraulic lathe, digital control external/internal horning machine, high-speed deep-hole boring machine, computer controlled hydraulic test bench. And some equipment for high speed railway such as car washing machine, tractor, multi-function testing machine, etc. With characteristics of advanced design, high automation, high productivity, safe and reliable operation, seven technology have gained national patents, the products have been marketed to 27 provinces and exported to 8 countries. The company was listed into qualified supplier for XCMG, SANY, FOTON, BAUER, HYUNDAI, BQ TADANO, ZOOMLION, Beijing Jingcheng Heavy Industry, No. 1 and No. 2 Aviation Research Institute, and so on. We become their strategic partner and established long term cooperative relations with them. Based on the strategy of " Scientific Research and Elaborately Manufacturing? and concept of people-oriented and market-oriented, the company will commit to produce products with more advanced technology, more reliable quality to make more contribution to the development of national engineering hydraulic sector.