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  1. rajdhir

    Central A/C and Furnace Sizing

    Can someone help to size a central A/C unit for 2040 sq. ft. townhouse in South New Jersey. It is a 2 storey townhouse with 7 rooms. It has 3 exposed walls i.e., front, back and one side. It also has a basement which is not airconditioned and is not part of the 2,040 sq. ft. The builder is...
  2. rajdhir

    Hard Brass

    Thanks guys for your replies. I export brass scrap from the US to India. I think the Hard Brass is about 90% Cu. It has some lead in it so that it can be machined. I just want to know the exact composition and common US alloy numbers of hard brass. Also, what are the uses of Hard Brass...
  3. rajdhir

    Hard Brass

    What is the chemical compositon of 'Hard Brass'. What are its uses? Are there different grades of Hard Brass and what are their applications? Thanks!

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