The three guarantees for repair, replacement, and refund or compensation provided by manufacturers or retailers for faulty products.

Abbreviation for the system where businesses and residents are responsible for the cleaning, greening, and public order of the area in front of their premises.

(literary) Refers to the three famous Tang dynasty poets from the same family: 包融 bāo​róng, 包何 bāo​hé, and 包佶 bāo​jí.