Flame-retardant pine coating plate and production process thereof

The invention discloses a flame-retardant pine coating plate and a production process thereof, and belongs to the field of plate processing. The flame-retardant pine coating plate in the technical scheme is characterized in that the flame-retardant pine coating plate comprises at least two plate bodies and a connecting part, the two plate bodies are fixedly connected through the connecting part, inserting grooves are formed in the peripheries of the plate bodies, and clamping grooves communicating with the inserting grooves are further formed in the inner walls of the plate bodies; the two plate body connecting parts are inserted into the inserting grooves and matched with the clamping grooves, the connecting part comprises connecting plates inserted into the corresponding inserting grooves, two cavities are formed in each connecting plate, a spring is arranged in each cavity, and the two ends of each spring are fixedly connected with a clamping block extending out of the correspondingconnecting plate; and th