Taiwan NAK skeleton oil seal: TB skeleton oil seal, TC skeleton oil seal, TC skeleton oil seal, TF skeleton oil seal, TCN oil seal, EC skeleton oil seal, UA seal (NAK), TA skeleton oil seal; Japan NOK hydraulic oil seal: UNS hydraulic oil seal, NAK skeleton oil seal, LBI hydraulic oil seal (NOK), USI hydraulic oil seal (NOK), as well as all kinds of hydraulic cylinders, cylinder; complete seal with or without skeleton oil polyester seal oil seal; sealed basin, oriented belt, mesh to ring, dust ring, all kinds of metal hose; customized non-standard rubber parts and die, all kinds of high-pressure, low pressure tubing, all kinds of tape, plastic sheet , hose, strengthen management; and production and operation of all kinds, old and new international O-ring.