IS: 3724 - 1966 (with Amendment No.2 - 1976) : Specification for Cartridge Type Heating Elements (Non-Embeded Type)
IS: 3724 - 1966 (with Amendment No.2 - 1976) : Specification for Cartridge Type Heating Elements (Non-Embeded Type)
- New Delhi BIS 1966
- 2p+10p
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