1.High quality&economical price. 2.Available material : material for nbr, silicone, viton(fkm)&dow elastomers, neoprene, hnbr, natural rubber, sbr, ir, iir(butyl rubber), acm ect.Nsf an ktw approved for material epdm. 2)all manufacturing processes confirm to the iso/ts16949, sgs, rohs, reach 3)customer's design and specifications are accepted. 4) color and shape can be changed upon request.Available in various sizes and colors. 5)our professional r&d team can provide you higher quality products with competitive price and all documents such as ppap, control plan, pfmea etc. 6)have advanced cnc machine and technique to cut bonding washer molds by ourself. 7) high and low temperature resistance, oil resistance, anti-ozone and aging, wearable, great flexibility etc