https://www.putzmeister.com/documents/20152/9225696/Putzmeister_Concrete Technology_BSF38_EN.zip/6606cf2b-97bd-4355-6703-e8d7ad900a91
https://www.putzmeister.com/documents/20152/9225696/Putzmeister_Concrete Technology_BSF38_EN.zip/6606cf2b-97bd-4355-6703-e8d7ad900a91