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About product and suppliers:
        Alibaba.com offers 53,238 screwed union products. About 2% of these are pipe fittings, 1% are zinc alloy jewelry. 

A wide variety of screwed union options are available to you, such as iron, stainless steel, and plastic. You can also choose from union, elbow, and tee. As well as from equal, reducing. And whether screwed union is casting, or forged. 

There are 53,238 screwed union suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of screwed union respectively. 

Screwed union products are most popular in North America, South America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 12,397 with ISO9001, 6,968 with Other, and 2,077 with ISO14001 certification.