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Pipe and tube have a circular cross section but, unlike bars, they have holes on themselves. They are categorized into seamless and welded types.
| SML'S PIPE | has no joint so that it perfectly suits for harsh conditions such as high-pressure, temperature, low-temperature and corrosion resistance. The most representative uses are in machine structure, heat exchanger, industrial machines, chemical plants, nuclear power, airplanes, automobile, shipbuilding, freezing condenser, boiler, etc. | 
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| WELD PIPE | produced by welding a rolled flat panel material. Normally utilized as piping material | 
| Production spec | weight calculation method | weight table | 
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| JIS : 6A~1,000A, SCH5S~SCH160 ASTM : 1/8~42 inch, SCH5S~SCHXXS | (external diameter – thickness) x thickness x 3.1415 x specific gravity x length x quantity | download | 
JIS : 6A~1,000A, SCH5S~SCH160
			ASTM : 1/8~42 inch, SCH5S~SCHXXS
(external diameter – thickness) x thickness x 3.1415 x specific gravity x length x quantity
| Suppliable mill | LS Metal, Kossen, WALSIN, KUZE and others | 
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