Packer manufacturing method

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专利权人:

恒;水谷

发明人:

水谷 恒

申请号：

JP2013211414

公开号：

JP6287023B2

申请日:

2013.09.19

申请国别(地区):

JP

年份:

2018

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide a packer which can be easily removed from a pipe.SOLUTION: A packer comprises a structure in which the packer itself is twisted so that the movement of a fulcrum, a positional difference (c) between holding parts (a) and (b), and a level difference between the holding parts (a) and (b) can occur.

来源网站：

中国工程科技知识中心

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http://www.ckcest.cn/home/