Hofmann
Hofmann
http://www.snapon-equipment.net/hofmann/en/catalog/products.asp?pid=17&gid=18&id=18&brand=hofmann
John Bean
John Bean
http://www.snapon-equipment.de/de/catalog/products.asp?gid=11&id=11&pid=9&brand=jbeg
Opto Plus
Opto Plus
http://uk.ewj.dk/content.asp?id=543&page=text