Occupational safety standards system. Machines and equipment for oil transportation. Safety requirements 
             
            
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              Crown-blocks, travelling blocks und hook blocks. Basic parameters 
             
            
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              Breathing vents for oil product tanks 
             
            
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              Hatch covers of tank for petroleum products. Types, main parameters and dimensions 
             
            
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              Petroleum and natural gas industries. Well service equipment. General technical requirements 
             
            
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              Vessels and apparatus. Norms and methods of strength calculation. General requirements 
             
            
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              Vessels and apparatus. Norms and methods of strength calculation. Requirements for the form of submission of strength calculations performed on a computer 
             
            
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              Vessels and apparatus. Norms and methods of strength calculation. Calculation of cylindrical and conical shells, convex and flat bottoms and covers 
             
            
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              Vessels and apparatus. Norms and methods of strength calculation. Heat exchangers 
             
            
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              Vessels and apparatus. Norms and methods of strength calculation. Shirts and apparatus 
             
            
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              Vessels and Apparatus. Norms and methods of strength calculation from wind loads, seismic influence and other external loads 
             
            
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              Accessories for vertical cylindrical strorace tank for pertoleum products 
             
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