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Open supplier searchCastings, forgings and fasteners form the physical foundation of reliable equipment.
Standard description (API source text):
Casing and Tubing
Names and standard mappings come from the API Composite List search snapshot. Product-use groups and Chinese reading aids are OFMP editorial additions, not official API classifications or translations; original English names are retained for comparison. Category snapshot: 2026-10-10
View the API category sourceSupplier profiles are selected by certificate product scope and standard. Certificate records are marked Active by the source; confirm current certificate status, product suitability and supply capability before purchasing.
Baoji · Shaanxi · People's Republic of China
EW Casing or Tubing (Plain End); EW Casing or Tubing (Threaded and Coupled); Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing, Tubing, Coupling Stock, or Accessory Material (P…
Baoshan District · Shanghai · People's Republic of China
EW Casing or Tubing (Plain End); Seamless Casing or Tubing (Plain End); EW Casing or Tubing (Threaded and Coupled); Seamless Casing or Tubing (Threaded and Coupled); Coupling Stock or Accessory Materi…
Baotou · Inner Mongolia · People's Republic of China
Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing, Tubing, Coupling Stock, or Accessory Material (Plain End); Processed Casing or Tubing (Threaded and Coupled); Processed Casin…
Chengde City · Hebei · People's Republic of China
Seamless Casing or Tubing (Plain End); Seamless Casing or Tubing (Threaded and Coupled); Coupling Stock or Accessory Material; Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing…
Cangzhou · Hebei · People's Republic of China
Seamless Casing or Tubing (Plain End); Seamless Casing or Tubing (Threaded and Coupled); Coupling Stock or Accessory Material; Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing…
Shuangyashan · Heilongjiang · People's Republic of China
Seamless Casing or Tubing (Plain End); Seamless Casing or Tubing (Threaded and Coupled); Coupling Stock or Accessory Material; Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing…