Not all raw uPVC resin is created equal. This technical article discusses how pipe factories like National Kham Plastic Factory implement rigorous testing and certification processes on incoming raw materials. It covers parameters such as melt flow index (MFI), impact resistance, density, and heat deflection temperature (HDT) to ensure every batch meets international standards.

July 27, 2025/
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Not all raw uPVC resin is created equal. This technical article discusses how pipe factories like National Kham Plastic Factory...