Flexible Rubber Refrigerant Line Air Conditioning Hose ...
Technical structure of air conditioning hose: For regular A/C hose has four layers, we call this A/C hose as type E air conditioner hose. Inside tube is nylon (PA). Middle layer is EPDM or IIR (Isobutylene-Isoprene Rubber). The reinforced layer is PET or single high strengthen weaving fiber braided. Outer tube is EPDM with black and smooth cover.
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