[中 文] 我公司生產的雞頭系列產品是APL 5pec7認證產品。該產品從材料夠進，加工、檢驗、出廠都是按照APL 5pec7標準嚴格檢驗可控制，產品選銷國內外性能可靠、質量穩定。
[English] Sub series products produced by our company are authenticated by API Spec7 products. The product is strictly tested and controlled according to API Spec7 standard from the purchasing of material, machining, testing and ex-factory. The product is reliable in performance, stable in quality, and sold abroad and home.
