NATIONAL 3/8" S2 - 5 die, M12, AF 19 mm, 150 ppm, built in the late 70s

SANSHING 19B-4S - 4 die, M8-M12, AF 19 mm, 193 ppm, built in the 80s

JERN YAO JNFP 24B5S - 26x30mm, 150 ppm, built 2001, 4 years use