... ,ROADUP.Certainly,OEM avaliable.(4)Raw Material: Natural Rubber(5)Rubber Content: 30%-55%(6)Weight(+/-100g): 1600g-2100g ... Banburying------Use Banbury mixerPut raw material(Natural Rubber,Carbon Black,Oil,Additive,Rubber Accelerator) to Banbury Mixer,and produce sizing ... sizing material into extruding machine,and extruding Triangle rubber strip.(3)Calendering------Use friction calenderCord thread get ...