Spiral steel pipe(SSAW steel pipe) in the oil and gas pipelines in the widely used, 70 to 80 years by the DSAW steel pipe and ERW steel pipes of serious challenges, since the world is basically in the oil and […]
Archivos de octubre 9, 2020
This is because the development of the steel pipe industry reliability requirements are high
Viernes, octubre 9, 2020 Publicado en Sin categoría| No hay comentarios 
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