1.CONSTAB PEX,Al raw material 2.AENOR,WATERMARK,EME,ISO Certificates 3.Butt welding pipe 4.For hot water 5.Factory price ... world2.With WATERMARK,AENOR,EME,ISO certificates verify,PEX AL PEX pipe is widely used for underfloor heating.TÜV and WRAS are ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); STARWIN underfloor heating pipes--PEX-AL-PEX multilayer pipe,plastic pipe