plastic pvc true union manual ball valve 1) Diameter: 1/2"~ ... 3) With socket and threaded en plastic pvc true union manual ball valve1) Diameter: 1/2", 3/ ... according to client's order, just as the standard, the quality, the size, the color, etc. Standard or Nonstandard: StandardStructure: ... TOP have got the in major brand manufacturers of the world, and suppled the OEM service to the customers such as ...