Introduction: in the event of any lamp is not light up normally, the system will alarm immediately and stop the transmission. UV lamp cover: four groups, each for front, back, left and right, these four groups of lamp cover can be adjusted from height, angle and width independently. Transmission speed: 3-12m/min (speed adjusting without machine + digital display speed) Performance: almost no loss rate, good stability, beautiful machine table, high quality, easy in operation strong pull force, more than 3.5 kg/cm.