Ship's similar hatch covers

Sudden similar manhole covers are used for access to rooms. Type 1 - splash-proof steel (St). Type 2 - water and gas-tight steel (St) and aluminium-magnesium alloy (AMg). Depending on the method of closing we produce three types of Type II covers: E - covers which are closed from outside and inside with handles; F - covers, which are closed from outside with wing bolts; G - covers which are locked from outside with a key and from inside with a handle. Depending on the construction of the leaf and the type of closing we produce covers of the E type in three versions: ?? - covers having a blade with a stamping and individual wedge closure; Ep.r - covers with flat blade and lever closure; Ep.i - covers with flat blade, and closing - individual wedge.