1. TOLERANS KALITE: -0 / + 5% nan PCS pou chak gwosè ak nan total.
2. Faktur: Baze sou kantite aktyèl anbake.
3. Couplage Dwe Fè Manganèz Phosphate Kouvwi pou chak API 5B, kouch sifas koulè kouch pou chak API 5CT 9yèm oswa API 5CT 10yèm.
4. Coupling Die-Stamping ak sifas regilye nèf semenn klas: XZOE 5CT-1368