江苏中正检测股份有限公司（简称OTC），是合法从事检验、鉴定、测试、验货和认证的第三方服务机构，致力于全球商品供应链的质量鉴定和审核业务，专注于提供各个行业的质量解决方案。Zhongzheng Group (OTC CHINA CERTIFICATE AND TESTING CENTER) is the lawful exercise of inspection, identification, testing, products inspection and certification third-party service agency. We are committed to quality appraisal, examination and verification business of the global commodity supply chain, and concentrate on providing quality solutions in a wide range of industrires.公正、健康、、环保、社会责任是我们每个员工的信念。