State system for ensuring the uniformity of measurements. Secondary standards of the units of length, velocity and acceleration by vibration of a solid body. Technique of comparisons
Information on technology. International standardized profile RA. Relaying the connectionless-mode network service. Part 9. Definition of profile RA51.1121, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access
Iron pattern plates for moulding boxes having inside dimensions 1200x1000 mm for moulding foundry machines without turn of half mould without squeezing. Design and dimensions
Occupational safety standards system. Protective clothing against chemicals. Performance classification and test methods for materials, seams, connections and fastenings of protective clothing against chemicals
€25
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