1. The structure of Shandong Yongan cylinder is not firm, but the structure of white cylinder is firm, so the white cylinder is good, and the price of Shandong Yongan cylinder is high.
2. The raw materials used in Shandong Yongan cylinder manufacturing are all low-cost and low-quality raw materials, while the raw materials used in Baigong cylinder manufacturing are all high-quality raw materials, so Baigong cylinder is good and the quality is guaranteed.