3.969mm AISI 1010 Carbon Steel Ball G28/G40/G60/G100/G200/G500/G1000 Liangshan Keda Steel Ball & Bearing Co., Ltd Base Info Description Pre：Single Row Ball Slewing Ring Bearing with External Internal Gear for Cranes Next：2.5mm Carbon Steel Ball G28/G40/G60/G100/G200/G500/G1000
