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发明名称
COVERING UNIT USED IN CONNECTING PRE-INSULATED PIPE AND CONNECTION METHOD FOR PRE-INSULATED PIPE USING IT
摘要
申请公布号
KR101123247(B1)
申请公布日期
2012.03.21
申请号
KR20090132148
申请日期
2009.12.28
申请人
发明人
分类号
F16L55/115;F16L25/02;F16L25/03;F16L59/02
主分类号
F16L55/115
代理机构
代理人
主权项
地址
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