Steel pattern plates with changeable metal inserts for moulding boxes having inside dimensions 400x300 mm, 450x350 mm, 500x400 mm for moulding foundry machines without turn of half mould with squeezing. Design and dimensions
Occupational safety standards system. Hearing protectors. Simplified method for the measurement of insertion loss off ear-muff type protectors for quality inspection purposes
State system for ensuring the uniformity of measurements. Conducting registration operations on items of reception-delivery of oil in the petrowire systems
