TY - GEN ED - BUREAU OF CEYLON STANDARDS TI - SLS 304 : 1974 : Specification for double-ended open jaw spanners (forged) PY - 1974/// CY - Colombo PB - BCS KW - a621.883.1 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD2519 ER -