The Turkish Ministry of Economy has introduced a new calculation method for import taxes and the VAT on imported vacuum tubes. The ’Protection and Inspection Tax’ (Korunma ve Gözetim Vergisi) was made official Read More
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<img class=" alignleft size-full wp-image-19964" tyle="float: left" hspace="7" vspace="10" border="0" src="https://solarthermalworld.org/devwp/wp-content/uploads/2010/01/warranty_periods_world_study_solrico.jpg" alt="warranty periods of collectors” " align="left" title=" warranty periods Read More
<img class=" alignleft size-full wp-image-19833" tyle="float: left" border="0" vspace="10" align="left" src="https://solarthermalworld.org/devwp/wp-content/uploads/2010/01/china_prosunpro_hotels.jpg" hspace="7" alt=" Collectors on Zhongshan University Guangzhou” " title=" Collectors on Zhongshan Read More
2008 
Volker Kallwellis, head Read More
<img class=" alignleft size-full wp-image-19257" tyle="float: left" hspace="7" vspace="10" border="0" src="https://solarthermalworld.org/devwp/wp-content/uploads/2009/06/qingtai_sunrain.JPG" alt=" Jiao Qingtai of Sunrain” " align="left" title=" Jiao Qingtai of Sunrain " width="315" Read More