What are full cold contraction cable accessories?

Full cold contraction cable accessories, usually also called "Predilation" accessories, refer to using good elastic rubber materials (commonly using silicone rubber and ethylene propylene rubber), in the factory, being injected or molded into the parts of a variety of cable accessories and vulcanized molding, then inner diameter being expanded and the spiral plastic support bar being lined, to keep the state after expansion. Gently draw the support bar in use, and at the normal temperature, it is a new type of elastic accessories in natural contraction without fire and special tools, called cold contraction cable accessories. All the combination parts of the cable accessories adopt the cable accessories composed by cold contraction parts, and are also known as the cold contraction cable accessories.