... 2. Ambient temp.: -15-105 degree 3. Insulation class: A, E, B, F.H Zhuogao Motor Manufacturing Co.,Ltd Our motor ... , CUL, ROHS, SGS, CCC,ISO9001:2008. Zhuogao strictly implement quality control for every kind of materials and seriously inspect each procedure ... from domestic inland or overseas to visit Zhuogao and negotiate. gear box motor/range hood motor/oven fan motor