1. Ld-pe inner mold transparent color: mainly used for the inner mold injection of the connector, with good softness, extension, transparency, cold resistance and processing; Its chemical stability is good, can resist acid, alkali and salt solution; Good electrical insulation and air permeability.

2. All kinds of hardness PVC material: mainly used in the outer mold injection of the connector, the material is relatively light, waterproof and moistureproof, different from the plastic we see daily,PVC has the characteristics of flame retardant heat insulation. PVC material has stable physical and chemical properties, insoluble in water, alcohol, gasoline, gas, water vapor leakage is low; At room temperature can withstand any concentration of hydrochloric acid, below 90% of sulfuric acid, 50-60% of nitric acid and below 20% of caustic soda solution, with a certain degree of chemical corrosion resistance; It is quite stable to salts, but can dissolve in organic solvents such as ethers, ketones, chlorinated aliphatic hydrocarbons and aromatic hydrocarbons. Injection molding production cycle is short, high productivity, the use of injection molding can produce complex shape, size requirements and with a variety of inserts of plastic parts, which is difficult to achieve other plastic molding methods; Secondly, injection molding is easy to achieve automation in the production process, such as injection, demoulding, gate removal and other operations can be automated, so injection molding has been widely used.
3. TPE material: mainly used in the outer mold injection of connector, easy processing, high production efficiency, short molding cycle; The property is relatively stable, with good temperature resistance (operating temperature range -50-
100℃), aging resistance, chemical resistance, solvent resistance.

4.TPU material: mainly used in connector outer mold injection molding, its advantages are elastic, oil resistance, low temperature resistance, wear resistance, with the advantages of plastic and engineering plastics, environmental protection to human body and nature are harmless; The hardness range is wide. Products with different hardness can be obtained by changing the proportion of each reaction component of TPU. With the increase of hardness, the products still maintain good elasticity and wear resistance. High mechanical strength,TPU products have excellent bearing capacity, impact resistance and shock absorption performance.

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