Takom provide both kinds of loader's hatch; welded and forged. The hatch type depended on who manufactured the turret, and for a given Tiger, it can only be determined from photographs.
But Takom's hatch parts are not perfect. They have a lock in the center, which was not present on Early Tigers. And, what is more difficult to correct: their bolts are too close together. This becomes obvious here, when the Takom hatch is compared to a real hatch.