GB 51227-2017
Specification for construction and acceptance of shaft drilling method (English Version)

Standard No.

GB 51227-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 51227-2017

GB 51227-2017 history

• 2017 GB 51227-2017 Specification for construction and acceptance of shaft drilling method