They are the type of waterstop gaskets placed inside the concrete construction element used in joints for raft – raft foundation, raft foundation -retaining wall, retaining wall - retaining wall joints. They are produced in three different widths (240, 320, 500 mm). It is called A240, A320, A500.

They are the type of waterstop gaskets placed inside the concrete construction element used in joints for raft – raft foundation, raft foundation -retaining wall, retaining wall - retaining wall joints. They are produced in three different widths (240, 320, 500 mm). It is called A240, A320, A500.