1) YiShui GuangJu Hydraulic Cylinder Manufacturing Co., LTD. located in Cuijiayu Town YiShui County, LinYi, ShanDong, China. It is in Southeast Shandong Provience where ecomomy Developed Rapidly.2) Founded in 2008, our company is a private enterprise specializing in production of High Quality Ready Honed cold drawn Pipe, Honed&SRB Pipe and Piston Rods. Hydraulic Prop/ hydraulic Support Cyliner. 3)The total production capacity is 15000Tons. Our company covers an area 34000 square meters. And over 120 employees including more than 20 technicians.4) Hone & SRB Size Range details: OD: 42-245mmID: 32-200mmWT: 5-30mmID less than 50mmID More than 50mm Length:3000-4000Length:3000-12000Straightness: 0.5:1000Inner Tolerance: H8-H9Inner Smooth Surface: Max 0.6um5) Standard: (Description) (Range) (mm) Standard DIN2391, EN10305 Material ST45, ST52, E355,CK206) Piston Rod:Specification GB/T 2348-1993Grade C45,C20 OD 25-150MMLength 1000-5800mmChrom painting thickness: 1.5umID less than 50m Length:3000-4000Over the past years, the company has adopted the domestic quality raw materials for its production by establishing close cooperation relationship with the domestic leading companies, including Baosteel Shanghai Branch, Tianjin Pipe (Group) Corporation (TPCO), Ansteel Group Corporation, and some of its products even adopted imported materials for processing.By sticking to the operation theory of giving priority to good faith and quality, the company wishes to sincerely cooperate with people of all circles to seek joint development. We will provide quality product and services for both new and old customers. We sincerely welcome both new and old customers and friends of all circles to come to visit our company and give us your suggestions and advice.Business scope of the company: cold drawn and cold rolled high accuracy seamless steel pipes, single hydraulic propped steel cylinders, mobile cylinders and piston bodies. Product application scope: mining, machinery processing.