China's domestic valve factory larger and better have the following:
1: Shanghai Kaiwei Xi Valve Group Limited
2: Suzhou New Wave Valve Company Limited
3: China Nuclear Su valve technology industry Co. Ltd
5: Shanghai Liangong Valve Factory Co.
6: Jiangnan Valve Co.
7: Jiangsu Shentong Valve Co.
8: Lanzhou High Pressure Valve Co.
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