Cai Lun invented paper in 1000 after many years, Europe was the establishment of the first paper mill. While modern paper industry has been very well developed, but the basic principle remains the same with the method of Cai Lun Paper. The raw material is paper pulp seventy-eight has replaced, but f

Cai Lun invented paper after surgery in the more than 1,000 years, Europe is established the first paper mill. While modern papermaking industry has been greatly developed, but its basic tenets are still follow the same method Cai Lun invented paper. Paper materials 78 / 10 has been replaced by the

Cai Lun uses the waste silk wadding papermaking in the predecessor in the foundation, uses the bark, the hemp, the rags, the waste fishing net is raw material, has made one kind successfully both facilely, and the economical paper, summarizes a set of more perfect papermaking method, enable the pape

In postoperative more than 1000 Cai Lun invented paper, establish first European paper mills. Although modern paper industry has been very highly developed, but its basic principles are still talking to Cai Lun paper-the same way. Papermaking raw materials seventy eight-tenths has replaced by pulp,

Cai Lun invented paper of more than 1000 years after, established the first paper mill in Europe. Although modern paper industry has been very highly developed, but its basic principles are still talking to Cai Lun paper-the same way. Paper raw material of seventy eight-tenths has been replaced for