济南通风91在线视频观看工程是为了使空气流通，降低有害气体浓度的一种市政基础设施。通风管，风管制作与安装所用板材、型材以及其他主要成品材料，应符合设计及相关产品现行标准的规定，并应用出厂检验合格证明，材料进场时应按现行有关标准进行验收。

　　A ventilation duct is a municipal infrastructure designed to circulate air and reduce the concentration of harmful gases. Ventilation pipe, air pipe fabrication and installation for plates, profiles and other major product materials, design and related products shall meet the requirements of current national standards, and the application of the factory inspection certificates, materials should be carried out according to the relevant current national standard of acceptance.

　　2、处理各种通风91在线视频观看相碰及谐和的准绳，普通为：“小管让大管，有压让无压”。例如，自来水管与风管相撞，则应当自来水管拐弯。冷、热水管与下水管相碰，则应改动冷、热水91在线视频观看。

　　2, processing and coordination of various ventilation pipeline collision criterion, common: "let the pressure get tubular bassoon, no pressure". For example, when the water pipe is in collision with the air pipe, the water pipe should be turned. The cold and hot water pipes and water pipes should collide, change the cold and hot water pipeline

　　通风91在线视频观看是专门为一处或几处房间或设备送风和排风的91在线视频观看。91影视在线污污污91在线视频观看是专门共91影视在线污污污气的91在线视频观看，就用处来讲有分别，就91在线视频观看本身讲都是91在线视频观看。

　　A duct is a duct that supplies air or air for one or several rooms or equipment. Smoke exhaust pipe is a special flue gas pipeline, in terms of use, there are differences, the pipeline itself is the pipe.

　　安装完的风管要保证表面光滑洁净，室外风管应有防雨、防雪措施。 风管伸入结构风道时，其末端应安装上钢板网，防止系统运行时，杂物进入金 属风管内。

　　Installation of the wind pipe to ensure that the surface smooth and clean, outdoor air pipe should be rainproof, snow prevention measures. When the air duct is extended into the air duct of the structure, the steel plate net shall be installed at the end of the air duct to prevent the sundries from entering the metal air pipe when the system is running.

　　金属风管与结构风道缝隙应封堵严密。 风管穿越沉降缝时应按设计要求加设套管，套管与风管的间隙用填料(软质)封 堵严密，从这些特点91黄色软件下载应该可以很快的区分开两者的区别

　　The gap between the metal duct and the structural duct should be tightly sealed. When the wind pipe passes through the settlement joint, the casing shall be added according to the design requirements, and the gap between the sleeve and the air duct shall be sealed tightly with filler (soft), and from these characteristics we shall be able to distinguish the two areas very quickly

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