State system for ensuring the uniformity of measurements. Reference gauge-blocks of the 1st and the 2nd accuracy orders and working gauge-blocks of 00 and 0 accuracy classes up to 1000 mm. Methods and means for verification
Activities relating to drinking water and wastewater services. Guidelines for the management of drinking water utilities and for the assessment of drinking water services
Combined broaches with diameter from 50 to 120 mm for slitting holes with involute profile with wind round tail and centering at outside diameter with module from 1,5 to 2,5 mm. Construction
