Engine: adopt good quality famous-brand engines, with IP54 pretection grade, F grad isolation, smooth lubrication and high efficiency, which could also separately designed according to special requirements of users.

• 电动机：采用优质品牌电动机，防护等级IP54，绝缘等级F级，脂润滑，高效率，也可根据用户的特殊要求另行设计。