1988

Independent design and development of the first liquefied petroleum gas filling equipment.

None

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

8613820870098

E-mail

tianjinchanglong@126.com

Tel

022-86825773

Hotline:+86 022-86825773

E-mail：tianjinchanglong@126.com

Factory Director's Office:+86 022-86827988

Technical Section:+86 022-86825038

SEO

Business License

Tianjin Changlong Hongye Gas Equipment Co., Ltd.

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