Ultra-low temperature dimensional stability scheme for polyurethane catalyst PT303 in cold chain logistics container

ultra-low temperature dimensional stability scheme for pt303 cold chain logistics container polyurethane catalyst cold chain logistics is an indispensable part of the modern supply chain. it is like a conscientious “courier”, delivering fresh food, medicine and other temperature-sensitive goods to the destination safely. in this process, cold chain logistics containers play a crucial role, just…