JERN YAO JNFP-10B5S - 10x13mm, 40 tons, 300 ppm, 15 HP, 1998
JERN YAO 17B-5S - M10, 17x20mm, 200 ppm, 2005, 2700 hours use
NATIONAL M20 S2 - AF 30 mm, 105 ppm, 1988 rebuilt 2016, 270 tons