Manual Worm China is very cheap, because it is a low price does not mean you will get low quality, because the quality is great and will not compromise on quality. It must be made of non-toxic, high-quality materials for long-term use. Unique manual worm operation mode, both labor saving and accurate control of valve opening. The thin plate is compact in structure and occupies little space. It is suitable for all kinds of pipe systems with space requirements. The measurement is reasonable and the result is excellent and reliable.
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