BS 227:1970
$142.49
Specification for H-section steel arches for use in mines
Published By | Publication Date | Number of Pages |
BSI | 1970 | 24 |
Materials, physical properties of sections; identification marking of arches; 2- and 3-piece straight-legged and splay-legged arch shapes; joints, fish plates, bolts; preferred arch sizes; mass, dimensions of standard sections.