State system for ensuring the uniformity of measurements. State verification schedule for means of measuring of evolvent surfaces' parameters and angle inclination of line tooth
Welding consumables. Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels. Classification
Printing types. Type family Drevnjaya (for alphabets of Russian and roman graphic bases). Range of application. Design. Base line. Characters per 4 picas