Segmental Bridge Construction

Buda, 美国 中的 社区服务/非营利机构
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The American Segmental Bridge Institute (ASBI) was incorporated in 1989 as a nonprofit organization to provide a forum where owners, …

常见问题解答

问:
Do the grout discharge points always have to be above the duct level?
答:
Yes, the discharge points should always be above the duct level. By keeping the vents and discharge points above the duct level, it helps minimize potential for trapped...
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