


—SELF-ALIGNING PISTON ROD INDEX
—ROD CLAMPS- INTERNAL BACKFLUSH
—BLAK-JAK WASHPIPE CARTRIDGE INDEX
—BLAK-JAK WP PRESSURE INDICATOR
—BLK JACK TORQ PRO LITE VLV COVER INDEX
—BLK JACK TORQUE PRO VLV COVER INDEX
—BLAK-JAK LINER RETENTION INDEX
—Eweco (Ellis Williams Engineering Co)
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86-15531283675
86-13930442199
Jackzhang@oildrillingpump.com
wales@oildrillingpump.com
Zhizhao Industrial Park No.1 Road, Jiumen Hui EthnicTownship, Gaocheng District, Shijiazhuang City, Hebei Province, People's Republic of China