Hunting Pellet Copper Plating Carbon Steel Ball Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Harden Carbon Steel Ball for Slewing Ring Bearing Next：7.9/8/8.5/8.731 Carbon Steel Ball AISI1010-AISI1015/Suitable for Motorcycle, Bicycle, Auto Parts and Medical Equipment, Track, Skateboard and Roller Skates Gear
