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As the forging manufacturer ,we produced forging, rolled rings, ring forging, forged rings, ball bearing rings, slewing rings in slewing bearing, ceramic ball bearings, articulating boom slewing bearing, ball bearing, they are made of AISI 1552,AISI 4140, AISI 4150H, 52100.But we could not produced the bar forging, bar forgings in stainless steels forgings, alloy steels forgings, we service to customer for a wide variety of industries such as automotive, railroad, wind energy, construction equipment, mining, medical, aerospace, defense, general machinery etc. ZWZ Precision Forging is the one of the largest forging manufacturer in China. Our target is become the best forging supplier who could produced the miniature rings in miniature bearings.