1. PAINIER：PAINIER introduced SPC quality management system in 212. This is a management system that comprehensively monitors product quality through statistical process control method, which can find and solve problems in the production process in time and ensure that every product meets high quality standards. Therefore, PAINIER is of good quality among chain saw brands.
2. Sanfeng: Sanfeng has self-developed core technologies and patented products such as chain saws and chain grinders, which can quickly finish wood cutting, thus saving a lot of time and energy. It mainly creates an environmentally-friendly and economical multi-functional brand. In the design and manufacturing process, environmental protection and economy are considered, which makes it more environmentally friendly during use and helps users save costs. Therefore, Sanfeng SAFUN is of good quality among chain saw brands.