flip off caps: Spec.:13mm, 20mm, 28mm, 32mm. ISO standard, Any color can be order. Logo and texts can be printed. Flip off caps:Spec.: 13mm ... , 20mm, 28mm, 32mm.Standard: ISO standard. We can make ... :2000, ISO14001:2004, OHSAS18001:1999 standard. Workshop: clean modern workshop. flip off caps