PRODUCT CODE 101: 'TO' and 'TD' Tungsten Filled Stems (Weight Bar) - Tool String
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Rebco Type 'EO' Roller Stems are with Threaded Connections (Sucker Rod Type).
Rebco Type 'ED' Roller Stems are with integral QLS (Quick Lock System) - Rebco Type 'RQLD'.
STEM provides the weight to overcome the friction, pressures, and fluid viscosity acting on the Tool String and provides the weight required for effective Jarring impact when necessary.