Ka papa helu kumu kūʻai huahana (ʻāpana kumu kūʻai: RMB) Kūʻai ʻAmelika: API 5L, ASTM A106 / A53 German standard: DIN 1629 Material: 20 #, Gr.B, ST44 NDOD (MM) SCH40 SCH80 WT Weight Price WT Weight Price (MM) ( KG/M) (Yuan/ton) (MM) (KG/M) (Yuan/ton) 1/4″ 13.7 2.24 0.63 8100 3....
Heluhelu hou aku