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Petroleum

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Jessica Roland
www.mining gold company

Daniel Wen
HEBEI CHANGENG STEEL TUBE MANUFACTURING GROUP

ahmed Ebrahim
Alezz General Contractors

hassan ali
General Petroleum Company

WK WH
WH Steel Co., Ltd

John Christian
GlobalQyResearch

Jeasin Lee
China Topper Forged Valve Manufacturer Co., Ltd.

валя в.о
Shijiazhuang sunbo pump Co.,Ltd

Jose Buisac
Enertopia, SL

PETER PAN
JSC VALVE CO.,LTD

Dinesh K GUPTA
NILAM STEEL INDIA

ahmed maged
Global Gas & MEP

john Kelvin
Ameco Research

bob lee
Stainless Steel Pipe Suppliers

SHerif Gabr
Contract Resources

Ellison Yue
Yongjia Goole Valve Co.,Ltd

sara wang
Shaanxi Senwell Drilling Equipment Co.,Ltd

George Rizkalla
United Resources Company

Durlmark Industrial
Durlmark Industrial Inc.

RICHARD DUPRE
TECNICAS REUNIDAS - heat transfer div.

Rita Su
Hongkong Feature-Tec Co., Ltd.

Ahmed Hassan
Alexandria Petroleum Maintenance Co. ( Petromaint )

Mairan Abuk
Companiers

Chan Mike
HFT VALVE