DuMa Bearings Factory are specialty manufacturer of Stainless Steel Bearings and Chrome Steel Bearings.The consistent product quality is maintained under a modern management system to comply with ISO 9002 standard. Quality Policy: Build in a complete quality system, make first-class products,supply frist-rate service and satisty customers needs in accordance with the international standard. Quality Goals: a、best in China b、100% conforming products c、timely services, satisfying every customer . Plant Spirit: Unity, Hardworking, Enterprising & Practical S6000~S6018 S6200~S6218 S6300~S6318 S6800~S6818 S6900~S6918 Ball Bearings With Spherical Out-Side Surface Stainless steel: SUC200 SERIES SUC300 SERIES SNA200 SERIES SNA300 SERIES SSA200 SERIES SSB200 SERIES S682 SMR52 S692 S683 S693 S603 S623 SMR74 SMR84 SMR104 S684 S694 S604 S624 S634 SMR85 SMR95 SMR105 S685 S695 S605 S625 S635 SMR106 SMR126 S686 S696 S606 S626 SMR117 SMR137 S687 S697 S607 S627 SMR128 SMR148 S688 S698 S608 S628 S689 S699 S609 S629 S6700 S6800 S6900 S6701 S6801 S6901 S16001 S6802 S6902 S16002 S6803 S6903 S16003 SR1-5 SR2A SR144 SR2-5 SR2-6 SR2 SR155 SR156 SR166 SR3 SR1601 SR168 SR188 SR4 SR4A SR1602 SR1603 SR1810 SR1038 SR6～SR24 SR1212 SR1458 SF682 SMF52 SF692 SF683 SF693 SF603 SF623 SMF74 SMF84 SMF104 SF684 SF694 SF604 SF624 SF634 SMF85 SMF95 SMF105 SF685 SF695 SF605 SF625 SF635 SMF106 SMF126 SF686 SF696 SF606 SF626 SMF117 SMF137 SF687 SF697 SF607 SF627 SMF128 SMF148 SF688 SF698 SF608 SF689 SF699 SF6700 SF6800 SF6900 SF6801 SF6901 SF6802 SF6902 SF6803 SF6903