Every mining ventilation duct, manufactured by Sulong, meets the strict flame-retardant requirement of the Mine Safety and Health Safety (MHSA).
One project needs several types of ventilation ducts according to the complexity of the on-site mining operation.
Round lay flat ventilation duct as the portable flexible duct with custom choices(diameter, length and fabric material) meets your quality requirement and project budgets.
Oval ventilation duct as the portable flexible duct with custom choices(diameter, length and end connection) meets your quality requirement and project budgets.
Round and square spiral ventilation duct strengthened by hard-drawn steel or spring steel that can be bent withstand high pressure and handles the rigor of mine and tunnel projects.
Fiberglass Rigid duct is a flexible, interlocking duct solution for tunnel and mining application by constructing from filament wound fiberglass roving and reinforced with polyester fibers.