Metals Kingdom Industry Limited is professional manufacturer of  Testing and Repair  Equipment for Valve & Pipes since 1994.

Our  Portable Valve Grinding Machine ,Valve Test Bench Connecting rod synchronous telescopic mechanism,Portable Pipe Beveling Machine, Pipe Beveling and Cutting Machine all gained the National Patent  for utility models  in 1996 and 2014, our factory passed  ISO Quality Management Certificate in 2008 ,and got the  Certificate of Material Supplier by China National  Petroleum Corporation and National Power Corp.