Longer Laser B1 20W Laser Engraving Machine 4-core Laser Head 22-24W Output Power 450 x 440mm Engraving Area Plug Type:EU Plug but the air pump is

but the air pump is not connected

18-Optimum working temperature: 20℃-30℃

1 * Versatile Electric Roller

Two Trees TS2 20W Parameters:

Longer Laser B1 20W Laser Engraving Machine 4-core Laser Head 22-24W Output Power 450 x 440mm Engraving Area Plug Type:EU Plug but the air pump is20 24W Ultra high Power Laser: With the most advanced six core laser technology, Laser B1 20W has a strong 20 24W optical output power, one of the most strongest available diode laser today and thus a much stronger cutting ability. Laser B1 20W can cut through 15mm Pine, 8mm black acrylic, and even 0. 1mm stainless steel in one pass, 20mm basswood and 35mm black acrylic in multi passes. Highly Concentrated Laser and Stronger Cutting: With the most