Product Name: Nylon Pulley for Feeding Line/Drinking Line/ Air Inlet Model NO.: 3-1/2" Application: Drinking Line/Feedingline/ Air Inlet Surface Treatment: Polishing Material: Nylon Manufacturing Process: Casting Pulley Sizes: Type A Certification: CE, CCC Trademark: Yuyun Sanhe Transport Package: Standard Export Paper Carton Specification: 3-1/2" Origin: China(Mainland) Product Description Pulley for Feeding Line / Drinking Line / Air Inlet Cast Iron PulleyModel: 3-1/2"Nylon PulleyModel: 3-1/2"Material: NylonNylon PulleyModel: 1-7/8"Material: NylonNylon PulleyModel: 1-1/2"Material: NylonRelated Products: about our CompanyShandong Yuyun Sanhe Machinery Co.,Ltd is the biggest and the most professional manufacturer of ventilation equipment inChina,equipped with the most advanced CNC production lines and laser cutting machines, top quality level in the industry.