Quality
System Certificate Awarded to Qingdao Refractory Factory
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Credit Certificate of Shandong Wangcun
Bauxite Mine |
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Credit Certificate of Shandong
Wangcun Bauxite Mine |
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Credit Certificate of Shandong Wangcun
Bauxite Mine
International European Quality Prize |
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Second-Class State Enterprise Certificate
Awarded to ShanDong Refractory Factory |
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The quality control prize of ministry of metallur gical
industry awarded to ShanDong Refractory Factory |
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Credit Certificate of Shandong Wangcun Bauxite Mine |
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