Regulations on Geological and Survey Support for Industrial Safety and Protection of Subsurface Resources
Положение о геологическом и маркшейдерском обеспечении промышленной безопасности и охраны недр. |
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GOST 17.4.4.02-84Environmental protection. Soil. Methods for … |
MinTran 147Approval of the Rules for issuing and checking … |
GOST 28167-89Semiconductor alternating voltage converters. … |