He turanga whakamatautau hua hou a PetroChina raihana pakihi CEPAI Tiwhikete whakatauranga nama AAA Tiwhikete API-6A Tiwhikete API-6C Tiwhikete API-6D Tiwhikete CEPAI mo te paera poroporo Tiwhikete CEPAI mo te paera poroporo Jiangsu hua waitohu rongonui Tiwhikete AAA mo te punaha whakahaere ine Tiwhikete paerewa haumaru Tiwhikete 20211216CE Tiwhikete SIL o te kaiwhakaari Tiwhikete SIL o te kaiwhakaari Tiwhikete API-Q1