Some early electric lighting installations made use of existing gas pipe serving gas light fixtures which had been converted to electric lamps. Since this technique provided very good mechanical protection for interior wiring, it was extended to all types of interior wiring and bmore...
pvc conduit pipe characteristics 1, qualitative light, convenient transportation and handling: pvc conduit pipe material handling, loading and unloading, very light, convenient construction, can save artificially. 2 and pvc conduit pipe resistance to chemicals fine: pvc condumore...
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