2.V-belt: imported Japan Mitsuboshi or Sanlux belt, B type belt make sure use at least 5 years.
3,Motor: both China high quality motor and Siemens motor are available. Approved by CCC certificate. Protection level:IP55, insulation level: F class.
4,Fan blade: Fan blade is made of stainless steel by punching forming, no dust, attractive and durable. Special blade shape design ensure large air volume, no deformation, no broken, keep air volume same all the way. Thickness 1.2mm, surface finish BA grade.
5,Fan bearing: Bearing adopts imported double-row bearing with special waterproof disign, water can’t enter. High strength, lower noise, maintenance free and long service life.