Q/BQB 472-2018 English PDF (QBQB472-2018)

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Q/BQB 472-2018: Cold-rolled steel strip for color picture tube shadow mask
Q/BQB 472-2018
BQB
ENTERPRISE STANDARD OF BAOSHAN
IRON and STEEL CO., LTD.
Cold-rolled steel strip for
color picture tube shadow mask
Issued on. February 05, 2018
Issued by. Baoshan Iron and Steel Co., Ltd.
Table of Contents
Self-commitment ... 3 
1. Chemical composition ... 5 
2. Mechanical properties ... 5 
3. Surface roughness ... 5 
4. Inspection and test ... 5 
Self-commitment
The contents of Q/BQB 472-2018 “Cold-rolled steel strip for color picture tube
shadow mask”, prepared and published by our company, meet the
requirements of relevant national laws and regulations, mandatory standards,
and related industrial policies; and in accordance with the prescribed
procedures, are approved for release by the legal representative of the
enterprise. The products produced by our company meet the technical
requirements stipulated in this Standard. The standard number is clearly
indicated on the corresponding product packaging. Our company is responsible
for the truthfulness, accuracy, and legality of the declared public information,
and assumes full legal responsibility for the consequences of the
implementation of this Standard.
Baoshan Iron and Steel Co., Ltd.
February 5, 2018
Technical Index 1
Index name. Main indexes such as chemical composition and
mechanical properties
Index requirements. Main indexes such as chemical composition and
mechanical properties, and test methods are shown
in the attachment
(See Page 4 for details)