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Engineers and metal workers use the following abbreviations for metals. SS - Stainless Steel. MS- Mild Steel which means the weakest strength steel which is made. RHS - Rectangular Hollow Section. SHS - Square Hollow Section. There are many grades of Stainless Steel, depending upon what it is to be used for. Some cheap grades of SS , are only partly rust resistant. More expensive types such as used to make kitchen sinks, are totally rust free.

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12y ago

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