Coated tubes .
Outs.diameter, mm
Wall thickness, mm
Length, m

TU 14-3-1869-92 Steel inside enamelled tubes
material: steel 10, 20

57 up to 102 4.0 up to 6.0 6.0 up to 10 m
108 up to 133 4.5 up to 6.0
159 up to 194 6.0 up to 9.0
203 up to 219 7.0 up to 9.0

Tubes are to be welded on open air by means of manufacturer's paste.

TU 14-3-1822-91 Steel tubes galvanized of diffuse method
Steel grade:10; 20; 35; 45 chemical composition as per GOST 1050-86
Tubes are being inside and external galvanized
seamless
thickness of galvanizing  0.08-0.10 mm		 21 up to 89 2.5 up to 5.0 6.0 up to 7.0
electric welded longitudinal   thicknes of  cover
0.03-0.05 μμ		 22 up to 89 2.5 up to 5.0 6.0 up to 7.0
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Fax: +38 (05662) 4-47-41.