API 5L oalje en gas naadleaze pipeline
PSL1, PSL2 GR.B, X42, X46, X52, X56, X60, L360M/N, L415M/N, Q245R, Q345R, P235GH P265GH
Oalje en gas put casing PipeAPI 5CT J55, K55, N80-1
Lit jo berjocht
