We should know that construction screw steel is most afraid of rusting and corrosion. When we visit the steel market, we will see two ways to store the screw steel. One is to put it outdoors directly and expose it to the wind and sunshine; the other is to store it in a shed, where the rain can't reach it and the sun can't shine on it.

　　我們生活里重要的建筑材料有很多，也就屬于鋼材多，若日常維護(hù)不當(dāng)，建筑螺紋鋼就會(huì)發(fā)生腐蝕。

　　There are many important building materials in our life, which belong to the steel most. If the daily maintenance is not proper, the construction screw steel will be corroded.

　　一.大氣環(huán)境下的鋼筋受陽光、風(fēng)沙、雨雪、霜及一年四季的溫度和濕度變化作用，大氣中的水分和氧是造成戶外鋼材腐蝕的重要因素。

　　1. Steel bars in atmospheric environment are affected by sunshine, wind and sand, rain and snow, frost and temperature and humidity changes throughout the year. Water and oxygen in the atmosphere are important factors causing corrosion of outdoor steel.

　　二.這針對(duì)一些沿海區(qū)。海洋大氣里有含有大量的鹽，鹽顆粒沉降在金屬表面上具有吸潮性、侵蝕性，因而加重了金屬表面的腐蝕，越是沿海鋼材的腐蝕度就越嚴(yán)重。

　　2. This is aimed at some coastal areas. There is a large amount of salt in the ocean atmosphere. The deposition of salt particles on the metal surface has moisture absorption and erosion, which aggravates the corrosion of metal surface. The more serious the corrosion of coastal steel is, the more serious it is.

　　三.工業(yè)地區(qū)的鋼材，工業(yè)氣體里有SO2、NO2、H2S等金屬元素，這些氣體與地天空的雨結(jié)合會(huì)呈酸性，如果下雨形成酸雨，腐蝕金屬設(shè)施，建筑螺紋鋼儲(chǔ)存不當(dāng)也逃不掉腐蝕。

　　3. Steel products in industrial areas and industrial gases contain SO2, NO2, H2S and other metal elements. These gases will be acidic when combined with rain in the earth and sky. If acid rain forms and corrodes metal facilities, construction threaded steel can not escape corrosion if it is stored improperly.

　　鋼材是大型物件，且也算是昂貴的，鋼材經(jīng)銷商要做好防護(hù)措施，本公司的螺紋鋼是全新的，規(guī)格也齊全，國標(biāo)的鋼材是你的。

　　Steel is a large-scale object, and the price is expensive, steel dealers should take good protective measures, Tianjin Tiantaicheng Steel Company's threaded steel is new, specifications are complete, national standard steel is your first choice.