... Main products: O-Ring.X-Ring V-Ring.R-Ring. Y-Ring.U-Ring., Oil Seal,PU oil seals , rubber ... Number of Employees: 301 - 400 People Number of R&D Employees: 11 - 30 People Years of OEM Experience: 9 ... Size In Square Meters: 28000 Shift: 3 Main facilitiesR&D Equipments Tensile Testing Machine, Rubber Tensile Machine, Rotary Oil ... Meter, Shore-A Hardness Tester, Optical Projector rubber y shape ring