Overshot go into the heart of the drill pipe, the slider move up, make the tube socket head can be inserted into the center, when on the slider move up tight, using friction lift drill, remove loose again after the slider, by means of the connection string to slide along the block should tighten, set aside the center pipe, but in front of the salvage must first determine the bit in the bottom of the hole position, can be in a thin plate with bolts tight end of drill pipe, Drop the drill pipe to the bottom of the hole and press it on the drill bit. After waiting for a moment, it is proposed that the relative position of the drill bit at the bottom of the hole and the center of the rotary plate of the drill can be determined by observing the indentation left by the center pipe of the drill bit on the board, and then move the drill or rotary plate so that the center of the rotary plate is directly in front of the center pipe of the injured head, so as to ensure that the fishing device can be inserted into the center pipe accurately.
Name of product specification Materials Steel factory / origin Price (yuan/ton) Than yesterday Compared to last week Than last month Galvanized pipe Ø40*3.25mm Q215-235 Labour control 5550 0 0 0 Galvanized pipe Ø65*3.5mm Q215-235 Labour control 5550 0 0 0 Galvanized pipe Ø80*3.75mm Q215-235 Labour control 5570 0 0 0 Galvanized pipe Ø100*3.75mm Q215-235 Labour control 5570 0 0 0 Galvanized pipe Ø15*2.5mm Q235B Jinzhou 5110 0 0 0 Galvanized pipe Ø20*2.5mm Q235B Jinzhou 5150 0 0 0 Galvanized pipe Ø25*2.75mm Q235B Jinzhou 4780 0 0 0 Galvanized pipe Ø32*2.75mm Q235B Upper tube 4960 0 0 0 Galvanized pipe Ø65*3.0mm Q235B Upper tube 4970 0 0 0 Galvanized pipe Ø65*3.75mm Q235B Upper tube 4750 0 0 0 Galvanized pipe Ø80*3.5mm Q235B Upper tube 4750 0 0 0
Overshot Assembly,Fishing Tools,Overshot Assembly For Sale,Overshot Fishing Assembly
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