This standard specifies the technical requirements, inspection methods and volume measurement of canning wood. This standard is applicable to the canister wood specially used for mine shafts.
GB 4820-2013 Referenced Document
GB/T 17659.2 Sampling and judging methods for lot inspection of logs and sawn timbers—Part 2:Sampling and judging methods for lot inspection of sawn timbers*, 2018-09-17 Update