china thread rolling machine steel rod thread rolling machine re

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china thread rolling machine steel rod thread rolling machine rebar thread rolling machine supplier

china thread rolling machine steel rod thread rolling machine rebar thread rolling machine supplier

The Z28-40 type Thread rolling machine is often used to process the external thread parts of solid workpieces such as bolts, studs, scaffolding, etc. It has the advantages of easy operation, energy saving and environmental protection, and high work efficiency.

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china thread rolling machine steel rod thread rolling machine re