... the production on all measuring tools and instruments, our pipe fittings, made by mechanized process, are ensured for their ... Standard Thread, American Stand Thread, German Standard Thread, these pipe fittings are regularly available in the following ranges: Elbow, Tee ... vary from 1/4''~ 4'', which are suitable for joining water, steam, gas, and oil pipes.B.PROPERTIES AND CHARACTERISITCSMechanical ...