Flat roof pan comprises a roof folded corner ribbed piece arranged on the roof folded side end of an inner foot folded rib

摘要

Flat roof pan comprises a roof folded corner ribbed piece arranged on the roof folded side end of an inner foot folded rib. The ribbed piece lies on a side fold groove sink (5161) formed as a sealing surface flanked by an outer side folded ribbed piece (5131) : Preferred Features: The roof folded corner ribbed piece ends on the inner foot folded rib. A roof folded rib is arranged in the direction of a brick body.