Occupational safety standards system. Respiratory protective devices. Valved filtering half masks to protect against gases and or gases and particles. General specifications
Gas, gas condensate, oil and gas, oil and gas condensate deposits. Software for well planning and drilling engineering. The main functional and technical requirements
Iron pattern plates for moulding boxes having inside dimensions 400 x 300 mm, 450 x 350 mm, 500 x 400 mm for moulding foundry machines without turn of half mould with squeezing. Design and dimensions
