On March 13, Hebei Canghua PVC factory price
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PVC calcium carbide method Hebei Canghua PVC ethylene method Hebei Canghua - yuan/ton is characterized by high impact, short action time Quick change without goods note: this reprint is for the purpose of transmitting more information, and × 20 does not mean agreeing with their views or confirming the authenticity of their content
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