QB 1131-1991 Abolished Industry standards-Light industry

QB 1131-1991 The thickness of gold covering layer for jewelry is specified

Publish Date: 1991-06-04 Implement Date: 1992-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: QB 1131-1991

Standard Type: Industry standards

Standard Status: Abolished

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1991-06-04

Implement Date: 1992-01-01

Development Information

Superseded by the following standards

QB/T 1131-2005 QB/T 1131-2005 Specifications for the thickness of gold coating on jewelry

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