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ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
B21B0013220000 for rolling metal immediately subsequent to continuous casting (methods therefor B21B0001460000; continuous casting B22D0011000000, e.g. into moulds with rolls B22D0011060000) 1
B21B0015000000 Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills 1
B21B0015020000 in which work is subjected to permanent internal twisting, e.g. for producing reinforcement bars for concrete 1
B21B0017000000 Rolling methods or mills specially designed for making or processing tubes 1
B21B0017000000 Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling 1
B21B0017020000 with mandrel (B21B0017080000 takes precedence);; 1
B21B0017040000 in a continuous process 1
B21B0017060000 in a discontinuous process 1
B21B0017080000 with mandrel having one or more protrusions 1
B21B0017100000 in a continuous process 1
B21B0017120000 in a discontinuous process 1
B21B0017140000 without mandrel 1
B21B0019000000 Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work (straightening by rollers B21D) 1
B21B0019020000 the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling 1
B21B0019040000 Rolling basic material of solid, i.e. non-hollow, structure; Piercing 1
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