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PVC Plastic Cover Plate (SGP-IV) for Insulating Electrical Conduit System (ETL & UL)

PVC Plastic Cover Plate (SGP-IV) for Insulating Electrical Conduit System (ETL & UL)
INTRODUCTIONThe main raw material of PVC-U piping network is PVC resin, which is added moderate stabilizer, lubricant,...