Description: The Y221 packer is the underhole packoff tool and it is belong to cavain support packer that the setting depends on turning the tube and the solution seal depends on listing the tube. It can demonstrate the work principle and the structure composition, and may carry on disassemble and assemble training and the column assembling according to the standard. Details:
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No.1, Bei Yi Xiang, Damucang Hutong, Xidan, Beijing P.R.C.100032
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Damucang Hutong, Xidan, Beijing P.R.C.100032