TY  - GEN
ED  - Sri Lanka, Standards Institution
TI  - SLS 409 : part 3 : 2004 -  Engineering drawing practice:  recommendations for geometrical tolerancing 
PY  - 2004///
CY  - Colombo 08
PB  - SLSI
KW  - ENGINEERING DRAWINGS - Standards
KW  - MECHANICAL ENGINEERING -Standards
KW  - SRI LANKA-Standards
KW  -  STANDARDS-Sri Lanka
N1  - STD3084
ER  -