... to furnishing and installing cased tunnels, where they indicate to pass other utilities or obstructions without open excavation. Steel casing pipes ...
... . spherical, egg-shaped and detachable parts of it must not pass through Template E (small balls template) specified in EN 71 ... parts must not fit within the small parts cylinder or pass through Template E. STC can offer this test for you ...
... . Color Separation Filter,Neutral Density Filter,Filter,Short/Long Wave Pass Filter,Bandpass Filter and Interference Filter Specification of our color ...
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