... ,E are made of UL approved nylon PA66,parts B and D are made of nitrile butadiene rubber(NBR).3.Thread specificaiton ... to 100 centigrade. 5.Characteristics: Special design of clamping die and rubber part,large range in clamping cable, ultra-strong stretching ... resistance, waterproof, dustproof,and high ability to resist salt,acid,alkali, alcohol,grease ...