229910000831 Steel Inorganic materials 0.000 description 2.

238000010276 construction Methods 0.000 abstract description 5.230000005540 biological transmission Effects 0.000 title claims abstract description 17.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by ZHANGJIAKOU POWER SUPPLY Co OF JIBEI ELECTRIC POWER CO Ltd, State Grid Corp of China SGCC filed Critical ZHANGJIAKOU POWER SUPPLY Co OF JIBEI ELECTRIC POWER CO Ltd Priority to CN 201320389612 priority Critical patent/CN203352053U/en Application granted granted Critical Publication of CN203352053U publication Critical patent/CN203352053U/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee ZHANGJIAKOU POWER SUPPLY Co OF JIBEI ELECTRIC POWER CO Ltd State Grid Corp of China SGCC Priority date (The priority date is an assumption and is not a legal conclusion. ZHANGJIAKOU POWER SUPPLY Co OF JIBEI ELECTRIC POWER CO Ltd Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 李振国梁胜勇翟永慧廉春洋邢冀伟高桂生程伟王磊 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN 201320389612 Other languages Chinese ( zh) Google Patents CN203352053U - Chain-type ladder used for maintenance of straight line tower of power transmission line

CN203352053U - Chain-type ladder used for maintenance of straight line tower of power transmission line

Tower of trample cg