Among measures taken to cut costs was concreting areas originally designed for paving. PERI offers suitable accessories for in-situ concreting and for scaffolding systems. Six local residents donated timber, gravel and sand for concreting. Cranes were also designed to suit the height of the minaret for concreting. The concreting of the first roof stanchions was due to start in June 2017. As well as acquiring further concreting businesses, it diversified into building materials products. This was of concern due to time dependent concreting being undertaken at that time. Work moved to concreting the interior of the tunnel. The blast furnace foundation was laid, with first mass concreting, in January 1982. In the third case, the anchorage is achieved by concreting the whole metal bar. By 30 July, the concreting of the supporting columns was completed. After concreting this became a part of the supporting structure. Concreting on that wing was finished in November 1964. The concreting of the tower foot began on 15 March 1966.