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Technical Standards for cold rolled steel coil
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grade
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enterprise standard
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Comparable to foreign standards
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illustrate
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Standard
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Grade
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Standard
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Grade
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general use
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Q/BQB403 Q/BQB402
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St12 SPCC
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DIN1623JISG3141
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St12 SPCC
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For general forming processing such as refrigerators and other home appliance shells, oil barrels, and steel furniture.
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stamping grade
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Q/BQB403 Q/BQB402
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St13 SPCD
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DIN1623JISG3141
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St13 SPCD
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Steel for stamping and forming processes such as automobiles, home appliances, and construction.
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Deep drawing
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Q/BQB403 Q/BQB402
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St14, (F, HF, ZF)SPCE (F, HF, ZF)
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DIN1623JISG3141
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St13 SPCE
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Automobile headlights, fuel tanks, car doors, windows and other steels for deep drawing and forming.
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Steel for extra deep drawing
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Q/BQB403
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St15 St14T
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Car headlights, complex underbody panels, oil pans.
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hard steel
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Q/BQB402
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SPCC4D SPCC8D SPCC1D
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JISG3141
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1/4 hard1/8hard
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Steel for bicycle rims and steel for stationery.
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structural steel
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Q/BQB410 BZJ410
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St37-2G St44-3G St52-3G
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DIN1623
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St37-2G St44-3G St52-3G
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Buildings, car bodies, brackets.
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