It is mainly used to restrict the relative motion between sub-wires on the overhead line with 15KV voltage, so that they can maintain a certain relative interval between the electrical products.Its main material is high density polyethylene (HDPE),

It is a high degree of crystallinity, non-polar thermoplastic resin, it has good heat resistance and cold resistance, good chemical stability, but also has a higher rigidity and toughness, mechanical strength, has a good electrical performance, especially high dielectric strength of insulation, so that

It is very suitable for distribution lines and can be recycled after its service life.