| 73042390 |
Outs.tubos de ferro/aco,s/cost.p/perf.extr. petroleo/gas |
| 73042400 |
Tubos de acos inox.s/cost.p/revestim.de pocos, etc. |
| 73042910 |
Tubos de acos n/lig.s/cost.p/revestim.de pocos, etc. |
| 73042931 |
Tubos de ligas acos,s/cost.p/revest.pocos,etc. d<=229mm |
| 73042939 |
Outs.tubos ligas acos,n/rev.s/cost.p/revest. pocos,etc. |
| 73042990 |
Outs.tubos ferro fund/ferro/aco,s/cost. p/rev. pocos,etc. |
| 73043110 |
Tubos de ferro/aco n/lig.s/cost.sec.circ. lam.frio, n/rev |
| 73043190 |
Outs.tubos de ferro/aco n/lig.s/cost.sec.circ. lam. frio |
| 73043910 |
Tubos de ferro/aco n/lig.s/cost.sec.circ. n/rev. d<=229mm |
| 73043920 |
Tubos de ferro/aco n/lig.s/cost.sec.circ.rev. d<=229mm |