It refers to the IS 13197:1991 standard for grooved pipe couplings for steel pipes.
It is used by manufacturers like Penn-Union for bronze terminals. Safety and Handling 13197.rar
13197 | 10, 15, 25, 30, 40, & 45 Series Wire Housing - 80/20 13197 | 10, 15, 25, 30, 40, & 45 Series Wire Housing. 80/20 Aluminum RAR-025-D - Penn-Union It refers to the IS 13197:1991 standard for
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