API 5CT N80管道
API 5CT N80管道級由美國石油研究所（API）定義，用於石油國家管道商品（OCTG）。 N80鋼以其強度和抵抗力和對腐蝕和破裂的抵抗而聞名，在挑戰性的鑽井條件下提供了出色的性能。它經常用於高壓和更深層次的井應用。
API 5L碳鋼管
API 5L碳鋼管 規格涵蓋適用於輸送氣體、水、油和其他液化介質的無縫管和焊接管。 PSL 1 無縫和焊接； API 5L 第 45 版 PSL 2 無縫和焊接；和 API 5L 第 45 版 PSL2 僅焊接。 API 5L管是根據美國石油學會規範的碳素鋼管，這種鋼管以焊接和無縫兩種形式生產，API 5L鋼管更適合輸送油氣、水和石油液體，API 5L碳鋼管也稱為黑鋼管，也廣泛用於石油鑽井用途，API管線管的需求由於其成本效益和耐用性、易於焊接而不斷增加，API 5L無縫管的成本比API高20% 5L ERW管，API 5L管有PSL1和PSL2兩種類型生產，API 5L最常見的牌號有API 5L GRB、X42、c46、x52、x56、x60、x65、x70和x80，API 5L B級是一種更經濟、快速的材料，管線管按照美國石油協會的規格生產。
碳鋼平桿
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.
