UH-MGA Used in particular condition, like military products or important occasion.
UH-MGB Applied in large overloading, large-scale water conservation projects etc. as arc door support and bearing, large load roller sheave & pulley, thrust bearing, knuckle bearing, sliding plate, joint bearing, gate sliding, miler supporting bearing, turbine guide vane bearing etc.
UH-MGC Mainly for large-middle scale loading bearing, sliding panel, sliding block and thrust collar etc.
UH-MGD Mostly used for middle-small scale loading bearing, sliding block or plate and thrust ring etc.
UH-MGE As compress buffer for gate of shipyard, bumper rail for pie; which can be sliding panel for parallel shift, for large scale weight on account of its low lubrication coefficient and dynamic and static coefficient of friction.
UH-MGN For steel reel, roller, gear, wheel and road wheel etc.