electrical box: 1.30 year's experience. 2.Certificate:ISO9001:2008. 3.Best OEM ... are mostly from America, Europe, Australia and Japan. More than 30% new customers come from the recommendation of the old customers ... bellows: Otis(USA), TJ(USA), Westinghouse(UK), SBFI(UK), Satisloh(CH), Foremost groups(USA), Network Rail(UK), SGS(AU), Charles(UK ...