When the engine is cool, the thermostat remains closed so that coolant cannot circulate through the radiator. Instead, coolant is recirculated within the engine block and cylinder head until the coolant reaches a predetermined temperature. At that temperature a wax-like pellet expands inside the thermostat to open it and allow the coolant to flow.
Casting process: Aluminum lower pressure casting | Gravity casting | Hydraulic pressure casting| Sand Casting
Green sand coring: can make out complicated inside constructor of casting
Heat treatment: T6(quenching +tempering): enhance aluminum alloy mechanical property, Can replace steel in some application.
Material according to GB standard (ZL101 to ZL401), EN standard (EN-AC 421000 to EN-AC 71000) and ASTM standard.
CNC machining in 4 axles machining center, Finish machining job in one time mounting.
OEM parts for reference only, welcome your serious enquiry
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Payment Terms:Telegraphic Transfer (TT,T/T)
Minimum Order:500 Pieces
FOB Port:Ningbo
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