Appearance inspection:
High-quality PVC raw material particles should be uniform, smooth, consistent color, no impurities, black spots and other defects.
Odor detection:
By smelling the smell of PVC raw materials, initially determine whether it contains harmful substances. If the raw material has a strong pungent smell, it may indicate that it contains more harmful substances.
Density and weight:
High-quality PVC raw materials should have a certain sense of weight and high density. The density can be roughly determined by comparing the weight and volume of different samples.
Supplier qualification reputation:
Select suppliers that meet national standards to ensure the quality of PVC raw materials. Suppliers have high requirements for the production environment and the selection of raw materials, and can check the quality of PVC raw materials.
Since its establishment, our company has been using high-quality raw materials, only to ensure product quality. We always believe that quality is the foundation of everything.