development of a mature bulletproof.

摘要

the invention relates to the manufacture of a building material is a mature bulletproof by a process that is the construction of small structures based on sheet metal sectionsgalvanized.this is to achieve a mature sandwich: 1 / using the lightweight structure of galvanized steel sections (100 mm / use of different internal and external surface of the sheet.letters layers.3 / a wall sections (10 cm thick, filled with silica sand and four building construction from a mounting panel elements identified in distribution)u00e9u00e9tablie.