When the heating temperature is 200-300? Preheating hot air flow 500L / min. 3.0mm-4.0mm diameter rod. 2, All our items is from the original factory directly.We promise the best quality and best after-sale service. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Process Engineering Equipment\Plastic Processing Equipment\Auxiliary Process Equipment\Plastic Welders & Sealers". The seller is "tech-zoom" and is located in this country: CN. This item can be shipped worldwide.