GB 644

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 601

normative_reference GB 602

normative_reference GB 603

normative_reference GB 619

normative_reference GB 6682

normative_reference GB 9723

normative_reference GB 9728

normative_reference GB 9729

normative_reference GB 9738

normative_reference HG 3-119