1)we are a large scale manufacturer 2)certificates:ISO9001,ISO14001,UL 3)rubber accessory 4)OEM are welcome 5)good services about the products1.CERTIFICATES:ISO/TS16949,ISO9001,ISO14001,UL2.MATERIAL: CR,EPDM,MVQ,SBR,NR,NBR etc.3.CHARACTERISTIC: Ozone resistant,high/low temperature resistant,Aging resistant etc4.SIZE: any size we can produce.5.PACKING: cartons or at your requests.6.NOTE: we are a ...