TONGDA Textile Machine Spinning Parts Ring Cup ...
2021-10-4u2002·u2002TONGDA Textile Machine Spinning Parts Ring Cup The Advantage of our Steel Ring: 1.With excellent bearing materials and advanced techniques in heat treatment, we can get the micro-hardness about HV830 to 850 at any point from its surface to heart.It also has compact and refined Martensitics structure. 2.It has admirable abrasion resistance, its life can reach 3 to 5 years, can keep the quality ...
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