At present, the measurement technology for small and medium size is becoming more and more perfect at home and abroad. In the past decade, there have been many new methods and new instruments for measuring small and medium-sized parts. These new methods and new instruments have basically met the requirements of modern production. However, the measurement of large dimensions, especially the measurement of the inner and outer diameters of large workpieces, is very slow. Foreign large-diameter dimensional accuracy
Stainless Steel Welded Rectangular Tube
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