Newtech Pneumatics has three types of hydraulic couplings. The KZD couplings - brass with pressure up to 75 kg; ISO 7241A - made of carbon steel with working pressure up to 350 kg. The couplers are available in female type [socket and plug]. The available sizes are ?" to ?". The couplers are having ISO 7241A standard and interchangeable with any coupler with ISO7241A standard. Japanese type couplings: made of carbon steel with working pressure up to 350 kg. The couplers are available in female type [socket and plug]. The available sizes are ?" to ?". The couplers are interchangeable with other Japanese type couplers. The company also has a stock of gas charging couplings, which are commonly called pipe clamp couplings in various sizes. In pneumatics, it has stock of QKD series of mini couplings in size 1/8" and ?". It also manufactures ISO 6431 profile magnetic cylinders, ISO 6432 magnetic round body cylinders and PU [polyurethane] tubes.