A lock box equipped with cylinder protection device is installed on an explosion-proof part by pressing method, and a lock box is installed on the

摘要

It includes: (a) providing laminated steel plate; (b) pre preparing steel plate with hydraulic press or overspeed press, with the delay time reaching 20% of the final lock box; (c) pre preparing steel plate with overspeed underwater sound press or overspeed press, with the completion time reaching 40% of the final lock box; (d) (e) Through the neat process of the edge of the box, 70% of the cover of the lock box and the cylindrical door is formed as a single explosion-proof component; (f) the safe is cut to make the safe targeted; (g) the window of the drilling safe and the cargo box;(h) Drill holes for the top of the cylinder and two holes on the door; one for night safety and the other for shooting shaft; J) drill five top seals to fix the inner cover; K) drill holes on the side and three seals without self failure thread; And (L) the fixed base of the cylinder door in the welding box, which has a threaded clamp and a clamp, and the shape is "U" fixed base