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Chinese National Standard Category: Cutting tools

English Title: Centre drills. Part 1: Centre drills for centre holes without protecting chamfers-Type A. Dimensions
Chinese Title: 中心钻 第1部分:不带护锥的中心钻-A型 型式和尺寸
Standard No.: GB/T 6078.1-1998
Category No.: J41
Issued by: AQSIQ
Issued on: 1998-1-1
Implemented on: 1999-9-1
Status: superseded
Superseded by:GB/T 6078-2016 Centre drills
Superseded on:2016-9-1
Abolished on:
Superseding:GB 6078-1985
Word Count:1500 words
Similar Standards: GB 1440-1985   GB 1121-1985   GB/T 1109-2004   JC 340-1992(1996)   GB/T 14299-1993   GB/T 1142-2004   GB 1436-1985   GB 1127-1981   GB/T 3832.1-2004   GB/T 1135-2004   GB 6129-1985   GB/T 4261-1984   GB/T 4251-2004   GB/T 4267-2004   GB/T 3832.3-2004   GB 6134-1985   GB/T 14329.1-1993   GB/T 3832.2-2004   GB 1437-1985   GB/T 4253-2004  
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