67===oto yedek parca ,insaat.muhendislik,maden,

Insaat firmalari var liste olarak www.ralenti.co.nz/build_school/index.html www.ralenti.co.nz/companies/listcompany.cgi?A www.ralenti.co.nz/building_industry_websites.html pek çok  oto parcasi   çesit var bir bakın bu siteye www.tecnicaindustriale.net/orders.htm bu siteyi görünce    ” vay be keşke mühendis olsaydım” dedim. Long list of all steel industry links. www.steelonthenet.com/links/all_links.html www.steelonthenet.com/links/directory.html British Standards Institute BSi) www.bsi-turkey.com/Standartlar-ve-Yayinlar/ shop.bsigroup.com/en/SearchResults/?q=IEC+60304:1982 www.aisc.org/content.aspx?id=4466 www.aisc.org/content.aspx?id=752 www.concrete.org/general/home.asp www.virtual-engineer.net/subcat.php?mainid=I13 www.virtual-engineer.net/suppliers.php?catid=I1313&&mainid=I13 www.virtual-engineer.net/main.php?mt=1