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Metal covered electrodes for manual arc welding of structural and heat-resistant steels. Types
Document status: Active
Low voltage distribution systems up to 1000 V a. c. and 1500 V d. c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance
Document status: Active
Polyethylene pipes for the supply of gaseous fuel. Specification
Document status: Replaced
Mining. Geotechnological risks. General principles for rating geotechnological risks in coal mining
Document status: Active