... .5APGJ12-101012172146FEATURES: 1.One-Touch tube fittings are used in pneumatics piping. 2.The tube fittings come in a wide variety ... of models to meet all your needs in pneumatics piping. 3.Even after installation ,the direction of the ... threads are standard with O-Ring seals.Our CompanyFenghua Yongyi Pneumatics & hydraulics CO., LTD is a professional manufacturer of pneumatic elements ...