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Environmental protection. Protection and rational use of water. Terms and definitions
Document status: Active
Magnesial-quarts proppants. Specifications
Document status: Replaced by GOST R 54571-2023
Unified system for design documentation. Basic requirements for drawings. With AMD 1-11
Document status: Active
Broaches with diameter from 45 to 90 mm for slitting holes with involute profile and centering at outside diameter with module from 3 to 5 mm. Construction and dimensions
Document status: Active