... clean, roundness, lineal measureand surface hardness.Suitable to wind film, metal foil withdust-free, flat appearanceOther Specification:Upon customerized ... ,coating,metal capping and inner printing available for options. Quality:Leading world wide.For Inquiry,pls advise ID, Wall Thickness, ... , Usage, Crush Strength,Those details are very important for Quotation.Pls note it! Welcome to inquire us!