According to "People's Republic of China (PRC) Contract Law", Guizhou Health Care Products Factory can sign a commissioned production contract with other health care products factories. In the contract, both parties should specify their respective rights and obligations, product quality, delivery period, price, mode of transportation, acceptance criteria, payment method, etc. Guizhou Health Products Factory should ensure that the products meet the relevant national product quality standards and bear the corresponding product quality responsibilities. The trustee shall perform the production and processing obligations in accordance with the contract and ensure that the product quality meets the requirements of the contract.