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2024-06-13

1997

For seven consecutive years, it has hosted industry exchange meetings and new product launches sponsored by the Ministry of Construction and China City Gas Association.

For seven consecutive years, it has hosted industry exchange meetings and new product launches sponsored by the Ministry of Construction and China City Gas Association.
 

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Tianjin Changlong launches an intelligent LPG station upgrade solution

2025-04-07

On November 8, 2024, the Beijing-Tianjin-Hebei Gas High Quality Development Forum was held in Tianjin

2024-11-12

Workshop on Revision of Seamless Gas Cylinder Standards Successfully Concluded

2024-10-14

Special Equipment Safety Day" Series of Activities Held in Tianjin Gangtang Gas Co., Ltd.

2024-06-24

My company website officially on-line operation

2024-08-12

Changlong Hongye

Hotline:+86 022-86825773

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E-mail：tianjinchanglong@126.com

Factory Director's Office:+86 022-86827988

Technical Section:+86 022-86825038

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