SCBA composed by 12 members, now the characteristics of each component are described below: 1. Mask: for wide field side windows, side windows polycarbonate lens material, with high transparency, abrasion resistance, and has a antifog function, mesh hood wearing style, wear comfortable, convenient, colloidal silica gel, non-toxic, tasteless, no stimulation, airtight performance. 2. supply valve: simple structure, functional, output flow, having bypass output, small size. 3. Belt Group: snap lock, easy to adjust. 4. Quick Connector: small, one-hand operation, there is a locking anti-off function. 5. Regulator: small size, flow rate, output pressure is stable. 6 bottle valve: a high pressure safety device, open the small moments. 7. back care: back care ergonomic design, made of carbon fiber composite material for injection molding, flame retardant and anti-static function, lightweight, sturdy, lined the inside of the back care flexible pad, make the wearer comfort . 8. straps: the flame retardant polyester fabric, adjustable straps with bilateral structure, the weight off in the Yaokua site, reducing the oppression on the chest strap, making breathing easier. And a wide elastic pad on the shoulder strap, reduce shoulder oppression. 9. Pressure gauge: large dial, with night vision capabilities, with a rubber protective cover. 10. Alarm whistle: placed on the chest, the alarm sound is easy to distinguish, small size and light weight. 11. The bottle with the group: Bottle with a card for a quick cam locking mechanism, and to ensure the bottle is always in a closed loop tape. Cylinders will not appear flipped. 12. Cylinder: aluminum liner fully wrapped carbon fiber composite cylinders, working pressure 30MPa, light weight, high strength, good safety performance, with a high pressure cylinder valve safety devices. Lvzhizubai www.yahuahui.com Beijing Niulanshan Erguotou www.tengfeijiuye.com lifesaving equipment www.jiusheng365.com