... ,chrome,stainless steel,iron,copper,ect.2.Roller Material:POM,nylon,glass fiber,etc3.Sealing from:2RS ZZ ,Z ,RS,OPEN ... (metal or nylon)4.Colour: natural color, green, orange, blue, grey, milky white ... on commitment, focus on quality, the pursuit of high-quality cost-effective. 3, We have advanced equipment and mature techniques.4.We ...