专利名称:rubber al发明人:佐藤 友和,小杉 泰裕申请号:JP2017211098申请日:20171031公开号:JP7043221B2公开日:20220329专利内容由知识产权出版社提供摘要:PURPOSE: To provide a packing which can be prevented from a fall and a fall-down from a groove fo
专利名称:rubber al发明人:佐藤 友和,小杉 泰裕申请号:JP2017211098申请日:20171031公开号:JP7043221B2公开日:20220329专利内容由知识产权出版社提供摘要:PURPOSE: To provide a packing which can be prevented from a fall and a fall-down from a groove fo