Gläsner Sandstrahl Maschinenbau GmbH Quiénes somos The Company of Gläsner Sandstrahl Maschinenbau GmbH is a mid-size business in specialised machinery construction. Our firm constructs sandblasting plants from the smallest pieces of equipment for manual work and trades to large-scale plants for industry. With our highly qualified workforce we have worked our way up to become a market leader.