TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 818 : 1988 : Specification for screwed studs PY - 1988/// CY - Colombo PB - SLSI KW - a621.882.219.4 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD2955 ER -