000 00223nam a2200073 4500
080 _a
_b
245 _aIS: 6141 - 1971 : Specification for Ship`s Single Sheave Blocks without Becket
700 _aINDIAN STANDARDS INSTITUTION
260 _aNew Delhi
_bBIS
_c1972
300 _a10p
999 _c25615
_d25615