000 00404nam a2200133Ia 4500
082 _aIS Code
_bB.I.S
100 _aBureau of Indian Standards[BIS]
245 _aIS:6315-1992. Indian standard floor springs. (hydraulically regulated) for heavy doors specification.
250 _aEd.2
260 _aNew Delhi
_bBureau of Indian Standards
_c1992
300 _a5p.
500 _aENG
890 _aIndia
999 _c19191
_d19191