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About product and suppliers:
        Alibaba.com offers 75 trapezoidal screw making machine products. About 49% of these are thread rolling machines, 28% are plastic extruders. 

A wide variety of trapezoidal screw making machine options are available to you, such as plates, sheet. You can also choose from free samples. 

There are 75 trapezoidal screw making machine suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of trapezoidal screw making machine respectively. 

Trapezoidal screw making machine products are most popular in Domestic Market, Mid East, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 34 with ISO9001, 14 with Other certification.