... 2).good waterproofness,healthy,very eco-friend Product: 3 layer seam sealing TapesItem No. AS678,MT-3AGeneral Width18mm~ ... commercially available hot air taping machines, laser or ultrasonic machinery.Another name: seam sealing tape, heat sealable tape ... .run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 3 layer seam sealing Tapes used for cover up sew seam edge