JB/T 3411.57

Standard Type

JBT

ICS

N/A

CCS

N/A

Status

N/A

Issue Date

N/A

Implementation

N/A

Responsible Dept

N/A

Drafting Unit

N/A

📋 Scope / 适用范围 ai_extracted

本标准规定了划线尺架的型式和尺寸。

Content extracted by AI. Not officially verified.