Metals Kingdom Industry Limited is based in China and lists portable valve grinding and lapping machines on Global Trade Plaza. The company offers the M-300C Portable Gate Valve Grinding Machine, which covers a grinding scope of DN100-400 mm (4"-16") for gate valve seats and cores, powered by a 1100 W motor at 220 V with an operating weight of 30 kg. It also lists the M-100a Plane Globe Valve Grinding Machine, designed for flat globe and safety valves from DN20-150 mm, with a 750 W motor at 220 V/50 Hz and a gross weight of 23.5 kg. The M-300C features split-type assembly for quick installation and is described as light, compact and easy to carry. The M-100a also features split-type assembly, is light, compact and easy to carry, and allows on-site maintenance without valve disassembly. The M-300C includes stepless adjustable speed, while the M-100a offers selectable valve seat angles of 30°, 40°, 60°, 75° and 90°. Buyers can send an enquiry through Global Trade Plaza.