FJH-3B air heater is manufactured by us - Hebei Hongye Machiery Co., ... ISO9001, TS16949 and CE certifications. FJH-5B air heater advantages: 1,Low power consumption. 2,High combustion efficiency.3,Heater can ... confirm the requirement of the EU environment protection standard. Use:1,They are used in heavy truck ,engineering vehicle for warmth ...