This product is released with conformity with currently applicable GB2000 and IEC6221-80 standards upon inspection and testing.
(你原来的翻译有两处小问题,一是你翻译出来的意思是“根据GB2000、IEC6221-80的标准进行检验和测试”,这与“经检验和测试符合GB2000、IEC6221-80标准”的意思有点出入;另外就是can be released不宜放在最后)
前面翻得很好了,后面can be released前应加一个and,否则是一个串句。
准予出厂建议翻为:...and is permitted to be dispatched.