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About product and suppliers:
            1,190 thermal expansion valve products are offered for sale by suppliers on Alibaba.com, of which other air conditioning systems accounts for 4%, refrigeration & heat exchange parts accounts for 4%, and valves accounts for 3%. 

A wide variety of thermal expansion valve options are available to you, 

There are 390 suppliers who sells thermal expansion valve on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of thermal expansion valve supply is 100% respectively.