Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Chinese National Standard Category: Shaft building equipment

English Title: Rock drilling - Rotary drill-rods and rotary drill-bits for dry drilling - Connecting dimensions
Chinese Title: 岩石钻孔 干式钻杆和钻头 连接尺寸
Standard No.: GB/T 20704-2006
Category No.: D91
Issued by: AQSIQ, SAC
Issued on: 2006-12-20
Implemented on: 2007-5-1
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:
Word Count:2000 words
Similar Standards: GB 25526-2010   GB/T 12761-2010   JB/T 3776-2010   JB/T 3874-2010   JB/T 5510-2008   GB/T 20704-2006   JB/T 6123-2006   MT/T 188.1-2006   MT/T 974-2006   MT/T 547-2006   JB/T 6122-2004   JB/T 3903-1999   JB/T 3153-1999   MT/T 813-1999   MT/T 788-1998   MT/T 663-1997   MT/T 664-1997   MT/T 131-1996   MT/T 534-1996   MT/T 540-1996  
Back          Detail

Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: Foryou Tech Co., Ltd. 2008-2020