Siphon development course

In 1968, siphon rainwater drainage system theory and model to be born in sweden;
In 1971 the first operation in Finland's capital Helsinki;
In 1998 the German Engineering Association issued" the siphonic roof rainwater drainage system" ( VDI3806 ).

The rapid development of Chinese siphon rainwater

In 1995, China's first siphon rainwater drainage system applied in -- Beijing capital airport four hangar.
In 2004, China's first registered specializing in the siphon, drainage layer with the scientific enterprise -- company was born in chi.
On 2005, promulgated the" siphon rainwater drainage system technical specification" ( CECS183: 2005 )
2011, countrywide by siphon rainwater project over thousands of, and an annual growth rate of 30%.

Same layer drainage development history

In 1911, Karl Schwab, lay the Schwab company success.
In 1945, Schwab to its product range expanded to plastic flushing cistern.
In 2000, Georg Fisher Schwab, in the German context established a nationwide sales network.
In 2004, China's first registered specializing in the siphon, drainage layer with the scientific enterprise -- company was born in chi.
In 2009, Schwab relocated to what is now Stuttgart Fellbach.
In 2010, Shenzhen records and Schwab company together, in China to promote the 100% made in Germany" ZHONGGE+SCHWB" same layer drainage system.

Today, in the annals and Schwab co-operation product line already covers the wall before the horse the flushing water tank and panel. German Klett dense Searl Schwab has been limited liability company for international environmental engineering supplier, its customers in more than 20 countries in the world.