SIAD SpALombardia, Italy
Shanghai Baosteel Gases Co., Ltd.
Shenyang Blower Works Group Corp.Liaoning Sheng, China
Wuxi Guanyun Heat Exchanger Co., Ltd.
Hangzhou Oxygen Plant GroupZhejiang Sheng, China
Messer SE & Co. KGaA (Germany)Hessen, Germany
Thrush Co., Inc.Indiana, United States
Shenyang Blower Works Group Corp.
SIAD Macchine Impianti SpA
TGE Gas Engineering GmbHNordrhein-Westfalen, Germany
Air Products & Chemicals, Inc.Pennsylvania, United States
Sichuan Jiubao Crystal Technology Co., Ltd.