平端无缝精密钢管|沙特标准|SASO-ISO-3304
SASO-ISO-3304
Plain end seamless precision steel tubes – Technical conditions for delivery
平端无缝精密钢管交货技术条件
平端无缝精密钢管|沙特标准|SASO-ISO-3304
SASO-ISO-3304
Plain end seamless precision steel tubes – Technical conditions for delivery
平端无缝精密钢管交货技术条件