Im Brian from Shanghai Haolin Industry.Co.Ltd,
Haolin specializes in manufacturing personal air breathing equipment and industrial safety equipment. The main products from Haolin include gas mask,breathing respirator,positive pressure breathing apparatus,long-tube breathing apparatus, electric air supply breathing apparatus,movable breathing apparatus,pumping breathing apparatus,air pump etc,
please check website www.haolincn.com , and feel free to contact me if you have any queries,