Mechanical Contracting & Plumbing January-December 1909 . (b) Internal smoothness and argu-ment. (e) Strength of joints. (d) Elasticity of the whole system. Perhaps the most important of theseand one that would decide the use ornon-use of galvanized wrought-ironmaterial for drainage is the length oflife duriiij which this material can be. Secf/on showingm tenor of Durham that this is a soft spot amongst ourfirst-class journeymen, but recently therehas been an opposition from a differentsource: coming from prominent inspec-tors and sanitary engineers, who claimthat galvanized-wrought waste and
Mechanical Contracting & Plumbing January-December 1909 . (b) Internal smoothness and argu-ment. (e) Strength of joints. (d) Elasticity of the whole system. Perhaps the most important of theseand one that would decide the use ornon-use of galvanized wrought-ironmaterial for drainage is the length oflife duriiij which this material can be. Secf/on showingm tenor of Durham that this is a soft spot amongst ourfirst-class journeymen, but recently therehas been an opposition from a differentsource: coming from prominent inspec-tors and sanitary engineers, who claimthat galvanized-wrought waste and soillines, after 15 years of use have entirely^i\en out and whole systems of plumbinghave had to be removed and replaced
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