... , wear-resistant; 3.High precision. Automatic hot melt Coating Gun,extruder machine Automatic Coating Gun, Automatic Coating Gun,Hot melt glue ... melt glue gun,Hot melt glue gun,glue gun,Extruder machine,Extruder machine,Extruder machine. The BT-FG series Fiber Glue Gun applies ... glue wire diameter, spray evenly distributed, etc., in the same compound strength save 15-20% of the amount of glue, edge ...