In today’s global economy, 定型產品 — meaning standardized products — play an essential role in ensuring consistency, quality, and efficiency across industries. These are products produced following fixed specifications, designs, and quality standards that rarely change over time. 1. Definition and Characteristics of 定型產品 A 定型產品 is designed with uniform size, material, and f... https://www.hairbeautypro.com/Styling_Product