admin 发表于 2013-8-7 22:44 http://bbs.infoeach.com/thread-29962-1-1.html 已上传
wowo520 发表于 2013-8-8 10:18 ISO 6194-1 (2007-09-15) Rotary shaft lip-type seals incorporating elastomeric sealing elements — Pa ...
admin 发表于 2013-8-8 15:02 http://bbs.infoeach.com/thread-30129-1-1.html 应该就是这个了,已上传