000 00219nam a2200073 4500
080 _a
_b
245 _aIS: 6142 - 1971 : Specification for Ship`s Single sheave Blocks with Becket
700 _aINDIAN STANDARDS INSTITUTION
260 _aNew Delhi
_bBIS
_c1972
300 _a9p
999 _c25614
_d25614