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Wanlong Zhejiang
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Cut-off valve
Gate valve
Regulating Valve
Sampling valve
Special Valve
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Petroleum Refining
Chemical
Electric Power
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Food
Pharmaceutical
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History & Culture
Wanlong Zhejiang
Wanlong Foundry
Technology Center
Cut-off valve
Gate valve
Regulating Valve
Sampling valve
Special Valve
Bellows Valve
New Energy
Petroleum Refining
Chemical
Electric Power
Environmental Protection
Food
Pharmaceutical
Design Services
After-sale Service
Training Services
Self-Service
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Provides customized industrial valve solutions for various industries
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Henan Shengtong Juyuan Materials Co., Ltd.
Hongrun Petrochemical
Rongsheng Petrochemical Company Limited
Shanghai Jinshan Petrochemical
Zhejiang hengyi group
Sinochem Lantian
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