To make SDS products to be Unique and trouble-free for the distributor and end-user, SDS staff works very hard and smart to make sure that every SDS products will conform to the taste of the most strict quality expert. ** The super-silent technology makes our product welcome in any location. Exhaust noise is damped by a large silencer while engine sounds are contained by a double-wall structure and absorbed by a liner. ** Use best quality silicon steel (50W470) and enamel-insulated wire (no-oxygen electrolytic coppers bar), for high efficient output. ** The voltage adjust rate is less than ±3%, that is, among 5-6 volt for 1 phase generator. ** Develop a special technology to make sure of the concentricity of the alternator when producing the stator and rotor, to avoid the bottom-worn and damage of the alternator. ** The first company who has adopted the lashing colt to test the wiring of the stator and rotor, to ensure of the best quality and longer service life of the wiring. ** Imitate the user’s exceeding operation conditions and take strict check-up, inspection and screen, to make sure every AVR used on the generator is of super quality.