Chengfa Technology takes the concept of "achieving low carbon, developing recycling" and independently innovative PET depolymerization and recycling technology as the cornerstone of its innovation path. It adopts a unique chemical recycling process to depolymerize and purify waste PET into ethylene terephthalate.(BHET) monomer opens up a key node in the industrialization of PET chemical recycling and realizes sustainable recycling of PET.