温室是以采光覆盖材料作为全部或部分围护结构材料，可在冬季或其它不适宜露地植物生长的季节供栽培植物的建筑。

Greenhouse is a building with lighting covering materials as all or partial envelope materials, and can be used for cultivated plants in winter or other seasons not suitable for exposed plants.

在北方地区：主要是起到春提早、秋延后的保温栽培作用，春季可提早30~50天，秋季能延后20~25天，不能进行越冬栽培。

In northern China: it mainly plays the role of heat preservation and cultivation in early spring and autumn extension. When it can be 30 to 50 days early in spring, it can delay 20 to 25 days in autumn, and winter cultivation can not be carried out.

在南方地区：除了冬春季节用于蔬菜、花卉的保温和越冬栽培（叶菜类）外，还可更换成遮阳棚，用于夏秋季节的遮荫降温和防雨、防风、防雹等。

In southern China: in addition to the winter and spring for winter insulation of vegetables, flowers (leaf vegetables), can also be replaced with sunshade for shade cooling in summer and autumn, rain prevention, windproof, hail prevention and so on.

所以，材料作为温室项目工程的源头，要把好项目质量关，首先要从材料的选用上把好关。比如温室项目上用的热镀锌管，在经验丰富的镀锌厂热镀后，质检部门再进行检测，检测合格后才会运往工地使用。

Therefore, materials as the source of greenhouse project projects, to close the quality of the project, first of all, from the selection of materials to the good close.For example, the hot galvanized pipe used in the greenhouse project, in the experienced galvanized plant hot plating, the quality inspection department to test, will be shipped to the construction site after passing the test.

佛山市万庆物资有限公司现货批发的热镀锌板，是将薄钢板浸入熔解的锌槽中，使其表面粘附一层锌的薄钢板。主要采用连续镀锌工艺生产，即把成卷的钢板连续浸在熔解有锌的镀槽中制成镀锌钢板。

Foshan Wanqing Materials Co., Ltd. spot wholesale hot galvanized plate, is a thin steel sheet immersed into the molten zinc tank, so that its surface adhesion to a layer of zinc thin steel plate.Mainly using the continuous galvanization process production, that is, the rolled steel plate is continuously immersed in the molten galvanized plating tank to make a galvanized steel plate.

热镀锌正常防腐不低于30年，冷镀防腐一二年就上锈了，工艺完全不一样，相对来说价格就有差别了。镀锌钢管大棚分热镀锌和电镀锌两种，热镀锌镀锌层厚，具有镀层均匀，附着力强，使用寿命长等优点。电镀锌成本低，表面不是很光滑，其本身的耐腐蚀性比热镀锌管相差很多。

Hot galvanization normal corrosion is not less than 30 years, cold plating corrosion a year or two on rust, the process is completely different, relatively speaking the price is relatively different.Galvanized steel pipe greenhouse is divided into hot galvanized and galvanized layers, thick, which has the advantages of uniform coating, strong adhesion and long service life.Electrogalvanized cost is low, the surface is not very smooth, and its own corrosion resistance is much different than that of hot galvanized tubes.

热镀锌可分为非合金镀锌和合金化镀锌：

非合金镀锌包括一般用、机械咬口用、深冲用、超深冲用材质。当镀锌量大时，耐腐蚀性优越，可作暴露件用，镀锌量小时，加工性能良好。

合金化镀锌包括冲压用、结构用、冷成型用材质、与纯镀锌层相比，合金化热镀锌的涂附性和焊接性能更优越，但在加工过程中易产生粉化剥离。

Hot galvanization can be divided into non-alloy galvanization and alloyed galvanization:

Non-alloy galvanizing includes general use, mechanical bite, deep flushing, ultra-deep flushing materials.When the galvanizing quantity is large, the corrosion resistance is superior, can be used as exposed parts, galvanized for hours, good processing performance.

Alloy galvanization includes stamping, structure, cold molding material, superior coating adhesion and welding performance of alloy thermal galvanization compared with pure galvanized layer, but it is easy to produce pulverized stripping during the process.

热镀锌牌号：

一般用：Q/BQB420  DC51D+Z  DC51D+ZF

冲压用：DD51D+Z  DC52D+Z  DC52D+ZF

深冲用:DC53D+Z DC53D+ZF 

特深冲用：DC54D+Z DC54D+ZF

超深冲用：DD54D+Z  DC56D+Z DC56D+ZF

Hot galvanized brand number:

General use: Q / BQB420 DC51D + Z DC51D + ZF

Stressing use: DD51D + Z DC52D + Z DC52D + ZF

Deep flushing use: DC53D + Z DC53D + ZF

Special deep flushing: DC54D + Z DC54D + ZF

Ultra-deep flush: DD54D + Z DC56D + Z DC56D + ZF

如以前的老房子水管大部分用的就是镀锌管，现在煤气、暖气用的那种铁管也是镀锌管，镀锌管作为水管，使用几年后，管内产生大量锈垢，流出的黄水不仅污染洁具，而且夹杂着不光滑内壁滋生的细菌，锈蚀造成水中重金属含量过高，严重危害人体的健康。六七十年代，国际上发达国家开始开发新型管材，并陆续禁用镀锌管。中国建设部等四部委也发文明确从二000年起禁用镀锌管，所以新建小区的冷水管已经很少使用镀锌管了。

Such as the old house water pipe mostly is galvanized pipe, now gas, heating with the iron pipe is also galvanized pipe, galvanized pipe as water pipe, after a few years, the pipe produces a large amount of rust scale, out of yellow water not only pollution clean ware, and mixed with not smooth internal wall bacteria, corrosion caused water heavy metal content is too high, serious harm to human health.In the 1960s and 1970s, developed countries in the world began to develop new tubes, and successively banned galvanized tubes.The China Ministry of Construction and other four ministries and commissions have also issued a clear ban on galvanizing pipes from 2000, so cold water pipes in new communities have rarely use galvanizing pipes.