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See Chinese contents: Q/BQB 419-2023 Q/BQB 419-2023: Cold-rolled conventional high strength steel sheet and strip
This document specifies the terms and definitions, classification and code, size, shape, weight, technical requirements, inspection and test, packaging, marking and inspection documents of cold-rolled conventional high-strength steel sheets and strips. This document applies to cold-rolled conventional high-strength steel sheets and strips (hereinafter referred to as steel sheets and strips), which have a thickness of 0.40 mm ~ 3.5 mm, as produced by Baoshan Iron and Steel Co., Ltd.
