GB 1438-85

Taper shank twist drills

锥柄麻花钻

Standard Type

GB

ICS

N/A

CCS

N/A

Status

N/A

Issue Date

N/A

Implementation

N/A

Responsible Dept

N/A

Drafting Unit

N/A

📚 References & Relations / 引用与关联

normative_reference GB/T 1443