Hot Melt Spray Applicator,Glue Spray Head,Glue Spary Gun Module, Glue Saving, Hot Melt Spray Applicator,Glue Spray Head,Glue Spary Gun Module, FEATURES: - Gas-on & Gas-off mode;- Full & even spray on surface;- Glue orifice and air orifice fully separated, minimize adhesive charring & dripping;APPLICATION: Top sheet of sanitary napkin, baby diapers Spiral Spray Gun