a policy or commitment to guarantee quality across three areas; in PRC consumer law, typically refers to repair 修 xiū, replacement 换 huàn, and refund 退 tuì, though it can also refer to products, parts, and technical services in other contexts

an alias for the Ming dynasty navigator and explorer Zheng He 郑和 zhèng​hé, known as Eunuch Sanbao 三保太监 sān​bǎo​tài​jiàn