Soya Lecithin (phosphatidylcholine, abbreviated as PC) is a yellow wax-like product refined fromsoybean powder phospholipid as raw material and ethanol extraction. They are widely used in pharmaceutical products, health foods, cosmetics industry.
Generally speaking, the composite ppr pipe adopts a five-layer structure, the outer layer is PPR, and the inner layer is PE-RT. In the middle, there is an aluminum layer.