Introductions:
1.Premium construction SAE20R3 and R4 class D1 and D2 is a high quality coolant hose designed to offer extral long service life on automotive and truck cooling system applications.
2.This hose is constructed EPDM tube and cover with two spiral layers of reinforcement. SAE 20R3D1&D2 are a Heater Hose, SAE 20R4D1 is a radiator hose. Both are intended to operate in the range -40°C to +125°C (-40°F to 257°F).
3.Long service life since hoses can withstand the abuse of corrosive additives, ozone and abrasion. According to the different shape engine to produce.
The following are its advantages:
1)Material: EPDM, silicone rubber, etc
2)Applied range: Auto cooling system
3)Others: According to the engine to make different shape.
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