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CHANGZHOU TONGHENG METAL & TUBE CO.,LTD
CHANGZHOU TONGHENG METAL & TUBES CO.,LTD Boiler Steel Tubes,Pressure Steel Tubes, Stainless Steel Tubes,ERW Pipes, Steel Round Bars, Steel Plates&Coils, Alloy Tubes, Galvanized Steel Tubes,Copper
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CHANGZHOU TONGHENG METAL & TUBE CO.,LTD Quality Info

CHANGZHOU TONGHENG METAL & TUBE CO.,LTD

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ICP license

ICP license is a permit issued by the Chinese Ministry of Industry and Information Technology to permit China-based websites to operate in China. The ICP license numbers for Chinese websites can often be found on the bottom of the front webpage.

Company Certifications

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