Company record
Campbell, J. A. Co. provides a broad portfolio of specialty equipment designed for oil‑field applications. Its offerings include thermowells, bi‑metal thermometers, thermocouples and complete thermocouple assemblies, protection tubes, and resistance temperature detectors (RTDs). The company also supplies micro‑beam pulsation dampeners and tank gauge strips manufactured from zinc oxide, stainless steel, or laminated plastic. Additional products comprise sight‑flow indicators, sight glasses, liquid‑level gauges, orifice plates, spectacle blinds, gas samplers, and clock winders.
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