1) Material: ABS plastic housing and Zinc Alloy die cast cylinder.2) Combination/key code: 200 key different3) Rotation angle 360 degree.4) Available in Brass, steel, Zinc Alloy or metal key with plastic cover (2 keys).
The aluminum-plastic composite pipe is made of a welded aluminum pipe as an intermediate layer, a polyethylene plastic as an inner and outer layer, and each layer is bonded by hot melt adhesive.
Low breathing resistance filter technology boosts comfort by incorporating Exhalation Valve to let out humid exhaled breath quickly and reduce heat or moisture build -up inside the face piece.
1.The only supplier on alibaba.com support 7 days refund money without any conditons.2.The customer can refund money for all goods didn't sold out within 6 months.3.Free hotel during visiting our factory.(HANGZHOU-SHAOXING)