Qb Led Grow Light,Quantum Board Grow Light,Grow Light Quantum Board,Quantum Board Led Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com The large-scale thin-walled cylinder produced by our factory is a key part. The size of the cylinder is large. In order to ensure the quality, our factory has verified the problem, and found the deformation law of the cylinder. Take measures to prevent deformation and determine the processing plan. The machining of the wall block meets the design requirements. The deformation of the first cylinder processed according to the original process is 0.5 to 0.7 mm. because