... EME,ISO certificates verify,PEX AL PEX pipe is widely used for underfloor heating.TÜV and WRAS are also under ... the middle,and two layers of glues.5.Applications: floor heating system,drinking water supply,liquild food & chemical industries ( ... .run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); STARWIN underfloor heating pipes--PEX-AL-PEX multilayer pipe,plastic pipe