tetroxide sealing It has a wide range of specification with ... Tianjin, Chi tetroxide sealingOur company mainly produce tetroxide & polyurethane sealing ,framework oil seal,washer, rubber o-ring, pipe clamp ... springFor rotation sealingLow friction coefficientSCSBSAKDouble lips without springFor Rotation Sealing Low friction coefficientKCKBKAVSingle lips without springFor rotation sealingLow friction ...