Customer Consultation on Types of X-ray exposure hand switch

A customer has consulted our L06 1-step X-ray exposure hand switch. Recently, the customer came to consult whether there are 2-step X-ray exposure hand switch of the same type of L06.
For X-ray exposure hand switch, we have 1-step, 2-step and 3-step. We have corresponding products for these 3-step of X-ray exposure hand switch, among which L06 and L05 are 1, L01 and L02, L04 are 2-step X-ray exposure hand switch, L03 is three-class X-ray exposure hand switch.
Among them, three X-ray exposure hand switch have buttons to connect and control other devices. For the first X-ray exposure hand switch, dental use is more frequent. For the 2-step X-ray exposure hand switch, it is generally used to control the exposure control of human X-ray film.