... is applied in advertising painting industry. The weld of hot-melt plastic membranes such as Spraying cloth, Lightbox Fabric ... Painting Fabric, target the sew (2-5cm), and fix the fabric on the ground with glue or tape. ... turn the handle to the left, till the hot-air spout is staight line with the wheel. Then ... speed value, turn the handle the right till the hot-air spout leave the ground. Then it stops. ...