UN 150*170*10/12/15 150x170x10/12/15 TPU Cylinder Hydraulic Rotary Shaft Piston Rod Grooved U Lip O Ring Gasket Wiper Oil Seal - AliExpress
XBaofu NBR O-Ring Seals 5 mm Thick 165/170 / 175/180/185/190/195/200/205/210 / 215 mm OD Oil Resistance Nitirle Rubber O-Ring Seals (Size: 205 x 195 x 5 mm) : Amazon.de: PC & Video Games