How long has dorian tool been in business? For over 20 years Dorian Tool has been an active player in the metal working and other related manufacturing industries, particularly in the research and development of highly technical, innovative tooling. … …What is the iso 9001 certification for dorian tools? Dorian Tool International ISO 9001:2015 Certified. Dorian Tool management system is ISO 9001:2015 certified for the Design and manufacturing of cutting tools, knurling tools and machine tools accessories for the metal working industry… more.Why does dorian lpg usa llc need my consent to receive notifications? At Dorian LPG (USA) LLC, it is our priority to protect your personal information. Therefore, in line with the General Data Protection Regulation (EU) 679/2016 (GDPR), we would like to ask for your consent to receive notifications via e-mail from us.