The Most popular epoxy resins are both diglycidyl ethers of bisphenol A, which can be created by reacting bisphenol A (BPA) with epichlorohydrin (ECH). the molecular body weight is controlled by modifying the ratio of ECH to BPA; superior ratios produce reduced molecular weights. A carbon filament-epoxy resin situation was https://www.propanraya.com/kategori/cat-lantai