A customer inquired about our X-ray collimator. All three X-ray collimators of our company have matching tubes or X-ray machines, so we specifically asked the customer about his X-ray machine model and tube KV. His tube is 125KV, X-ray machine For portable X-ray machine, our NK103 x-ray collimator meets his requirements. It should be noted that our collimators NK102 and NK103 are suitable for 125KV tubes. However, the NK103 collimator is more suitable for portable X-ray machines, and the NK102 collimator is suitable for mobile X-ray machines and can also be used for fixed X-ray machines.