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homepage |
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introduction of our group |
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screw thread steel was used in constructing chairman
mao memorial hall for its good quality |
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screw thread steel of changgang is awarded ¡°national
products quality free-inspection¡± certificate |
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changgang hot-rolled ribbed steel bars is confirmed
name brand products of shanxi province |
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changgang has been confirmed one of the largest 500
national industrial enterprises for constant 6 years
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