Tubo de aço sem costura afiação tubo de aço A106-B, SCH 60, BE, ANSI B 36.10 Seamless Steel Pipe 20 ". TUBO SMLS sem costura aço carbono tubo 15 polegadas sem costura aço tubo preto ferro tubo
API, API 5L, ASTM A106-2006, ASTM A53-2007, ASTM A210-1996, ASTM A199, DIN 1626, DIN 1629/4, DIN 17175, BS 1387, JIS G3461-2005, GB/T 8163-1999, GB/T 8162-1999
1.Black varnish painted or oil painted, 2PE.3PE on the surface.
2.Plain,square cut or beveling ene by caps.
3.In hexagon or triangle buddle with steel strips.
4.Other as the customer's requires.