Cover design with a large maintenance flap: 2/3 as fixed standard cover, 1/3 as opening, covered with a cambered flap.
Type A
Type A with removable flap, fastened on top with two quick-release locks made from stainless steel (cap lock), with two vertically offset stainless steel handles to remove the flap.
Type B
Type B can be opened to the top and is fastened on top using two stainless steel hinges with a stainless steel handle to open the flap (overall width 600/684/912 mm).
