種類 ALL O-RING and FLANGE INDUSTRIAL HOSE JYE.U Customized Product JYE.U Teflon Products PIPE FITTINGS 油管接頭 VALVE VACUUM FITTING Quick Couplings JYE.U PP.PVDF TUBE FITTINGS Fit-LINE テフロン接頭 INSTRUMENT TUBE FITTINGS PARKER 製品