专利名称：Bar ro - deingu method null of both ends processing发明人：杉本 健司，福山 邦男申请号：JP特願昭60-20540申请日：19850205公开号：JP特公平6-59562B2公开日：bon-bon blanco19940810专利内容由知识产权出版社提供摘要：PURPOSE:To reduce production time for a...