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14YRSHejian Deris Petroleum Drilling Equipment Co., Ltd.

Aperçu de l'entreprise

Album de la société

Informations de base

Contrôle de la qualité

Processus de Gestion de La qualité

Ensure every size accurate
Measure every size after machining , Ensure the cones inner and out diameter and legs size accurate. Make all of clients can drilling accurate hole.