Polyurethane Foam Gun: 1.Material:zinc alloy body; 2.Bronze nozzle; 3.Stainless steel needle; 4.Abrasion resistant. Best-Selling Polyurethane Foam Gun:1.Material:zinc alloy body,bronze nozzle,stainless steel needle;2.The trigger is iron coated with Nickel;3.Plastic handle (acetal copolymer
);4.Spring seated in the beginning of the gun body;5.The adjustable screw make the foam flow fluencly ...
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