现在位置: 首页 > thaifriendly hookup apps > 文章
Article and photos by Gregory Havel Probably the most typical water supply for a computerized fire sprinkler system is through a link up to a town water system. Link with an overhead water tank or a ground-level pressurized reservoir will be comparable. Picture 1 (below) shows an eight-inch water main rising through a floor to produce a sprinkler system in a big college. Two anchor rods are not...
阅读全文
×