... is a professional Personal Safety Equipment manufacturing factory, with owned production line as well as export division. ... Welding Mask, Dust Mask, Respirator, Earmuff & Earplug etc,JINHUA HENGFA INDUSTRY AND TRADE CO., LTD is established in 1999 with a ... woven , protect against dust and peice4.elasticated strap5.packing:polybag,head card, blister,etc replaceable filter plastic dust mask/ face mask