API 5CT N80管道
API 5CT N80管道级由美国石油研究所（API）定义，用于石油国家管道商品（OCTG）。 N80钢以其强度和抵抗力和对腐蚀和破裂的抵抗而闻名，在挑战性的钻井条件下提供了出色的性能。它经常用于高压和更深层次的井应用。
API 5L碳钢管
API 5L碳钢管 规格涵盖适用于输送气体、水、油和其他液化介质的无缝管和焊接管。 PSL 1 无缝和焊接； API 5L 第 45 版 PSL 2 无缝和焊接；和 API 5L 第 45 版 PSL2 仅焊接。 API 5L管是根据美国石油学会规范的碳素钢管，这种钢管以焊接和无缝两种形式生产，API 5L钢管更适合输送石油和天然气、水和石油液体，API 5L碳钢管也称为黑钢管，也广泛用于石油钻井用途，API管线管的需求由于其成本效益和耐用性、易于焊接而不断增加，API 5L无缝管的成本比API高20% 5L ERW管，API 5L管有PSL1和PSL2两种类型生产，API 5L最常见的牌号有API 5L GRB、X42、c46、x52、x56、x60、x65、x70和x80，API 5L B级是一种更经济、快速的材料，管线管按照美国石油协会的规格生产。
碳钢平杆
Carbon Steel Flat Bar includes the common hot rolled flat bar and cold drawn flat steel bar. Its width is 12-200mm, the thickness is 3-30mm and the length is 3m-12m or as per the client's request. MS rectangle bar is mainly used in the form various stress components according to the different needs of the structure, and it can also be used as a connection between components. Mild steel flat bar is widely used in the various construction structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves etc.
