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About product and suppliers:
        Alibaba.com offers 8,077 vacuum heat pipes products. About 40% of these are solar collectors, 38% are solar water heaters, and 1% are plastic tubes. 

A wide variety of vacuum heat pipes options are available to you, such as vacuum solar collector, pressurized, and manifold collector. You can also choose from solar thermal, water heater. As well as from glass, copper, and pvc. And whether vacuum heat pipes is free samples, or paid samples. 

There are 8,018 vacuum heat pipes suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 99%, 1%, and 1% of vacuum heat pipes respectively. 

Vacuum heat pipes products are most popular in South America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 5,952 with ISO9001, 2,273 with Other, and 1,197 with ISO14001 certification.