... good protection 3.adjustable belt ,one fit all JINHUA HENGFA TOOLS CO., LTD is a professional Personal Protective Equipment (PPE) ... Welding Mask, Dust Mask, Respirator, Earmuff & Earplug etc,JINHUA HENGFA TOOLS CO., LTD established in 1999 with a small parts assembling ... facility. After several years development, HF TOOLS cover an area more than 10,000 square meters, nearly ...