TY - GEN ED - Bureau of Ceylon Standards, Colombo LK TI - SLS : 576 : part 1 : 1982 : Specification for road vehicles part 1 - spark plugs M 18 x 1.5 with conical seating and their sylinder head housing PY - 1982/// CY - Colombo PB - BCS KW - a621.43.045 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD2781 ER -