What is QB?

The first thing that comes to mind is Q coins.

Q coin, referred to as QB for short, is a virtual currency launched by Tencent. Usually its exchange rate is 1Q = 1 RMB.

Other unusual explanations are as follows:

1. Industry standard

This book is attached with a comparison table between the national standard (GB) after rectification and the light industry standard (QB) after transformation. This book can be used by manufacturers, research institutions, users, quality inspection and supervision institutions and related scientific research units in the tool hardware industry.

2. Enterprise standards

Generally, economically developed areas embody advanced technology; Or develop building materials and activities that are suitable for local characteristics, accounting for 21%;

Enterprise standard (QB): only applicable to enterprises. Generally reflect the advanced or patented technology of the enterprise; Or specially designed to meet the special requirements of enterprises.

3. Quick disconnect

Petroleum English Vocabulary (Q) ...

QA quality assurance

Qb fast break; high-speed circuit-breaker

Qc rapid inspection ...

4. High speed circuit breaker

Petroleum vocabulary cards ...

QA quality assurance

Qb fast break; high-speed circuit-breaker

Qc rapid inspection ...