铸铁围栏的外层如何保持的更长久的方法：
How to maintain the outer layer of cast iron fence for a longer time:
一、铸铁的需要清沙，打磨处理，后喷上防锈漆。
1、 Cast iron needs to be cleaned, polished and sprayed with antirust paint.
二、铸铁围栏表面经过酸洗处理。
2、 The surface of cast iron fence is pickled.
三、要定期给铸铁围栏外层除尘。除尘用软棉布。
3、 The outer layer of cast iron fence shall be dedusted regularly. Soft cotton cloth for dust removal.
四、要注意防潮。因近年我国大部分地区酸雨肆虐，雨后应立即把残留在铸铁围栏上的雨水擦干，虽然有点麻烦，但这招很管用。能使铸铁围栏的外层不受侵害。
4、 Pay attention to moisture. In recent years, acid rain has been rampant in most parts of China. The rainwater left on the cast iron fence should be wiped dry immediately after the rain. Although it is a little troublesome, it works very well. It can protect the outer layer of cast iron fence from infringement.
五、防腐蚀，尽量避免酸性、碱性化学物品接触铸铁围栏的外表。
5、 Anti corrosion, try to avoid acidic and alkaline chemicals from contacting the appearance of cast iron fence.
本文由山东铸铁护栏为您提供，我们的网站是：http://www.jnwszy.com我们将以全心全意的热情为您提供服务，欢迎您的访问
This article is provided by Shandong cast iron guardrail. Our website is:http://www.jnwszy.com We will provide you with services with wholehearted enthusiasm. Welcome to visit
