American Petroleum Institute

API 7F

Oil Field Chain and Sprockets

8 companies listed on Oilfield Index hold API 7F (Oil Field Chain and Sprockets), issued by the American Petroleum Institute.

Categories these companies serve

Manufacturing & Fabrication 6 Custom Fabrication 4 Drilling Equipment — Unspecified 3 Drilling 2 Offshore Rig Equipment — Unspecified 2 Mud Pumps — Unspecified 2 Downhole Motors 2 Refining and Downstream 2 Fire & Gas Detection 1 Training 1 Workover 1 Pumping Equipment — Unspecified 1

Certified companies 8

DAIDO KOGYO CO., LTD.API Composite Listlicence 7F-0048Kaga, Ishikawa, Japan
Diamond (Weifang) Power Transmission Co., Ltd.API Composite Listlicence 7F-0050Weifang, Shandong, China
Hangzhou DongHua Chain Group Co., Ltd.API Composite Listlicence 7F-0042Hangzhou, China
Renold (China) Transmission Products Co., LtdAPI Composite Listlicence 7F-0047China
Renold Chain India Private LimitedAPI Composite Listlicence 7F-0020India
Shanghai Dalong Chains Works Co., Ltd.API Composite Listlicence 7F-0021Shanghai, China
Shanghai Yuanlong Chains Transmission Co., Ltd.API Composite Listlicence 7F-0036Shanghai, China
Tsubakimoto Chain Co.API Composite Listlicence 7F-0019Osaka, Osaka, Japan

“API Composite List” means the company holds an active licence for this specification on the American Petroleum Institute’s public Composite List; “claimed by vendor” means the company lists it and the list does not confirm it. Certificate files are available to signed-in members. Claim your listing to keep yours current.