... ,copper,ect.2.Roller Material:POM,nylon,glass fiber,etc3.Sealing from:2RS ZZ ,Z ,RS,OPEN (metal or nylon ... non-standard bearing&roller orders are available .2.Provide high quality bearing and roller according to customers's requirement.3.Popular ... experience in manufacturing bearings, emphasis on commitment, focus on quality, the pursuit of high-quality cost-effective. 3, We have advanced equipment and ...