1、 The main product of Linyi Dazheng Special Fiber New Materials Co., Ltd., which develops green sea components, is sea island composite short fibers. This composite fiber is produced using two types of raw materials, and the components that are processed during subsequent processing are called "sea components", while the components retained in the final product are called "island components". This category ..

1、 The embryonic form of synthetic leather production technology originated in Italy in the early 1920s. In the 1960s, DuPont in the United States first introduced polyurethane synthetic leather with natural leather characteristics, and the global synthetic leather industry began a continuous process of simulation, which began in the mid-1970s ..