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5. eco-friendly method for manufacturing concrete mortar to give effect to protect natural ecosystems . How to pave the way for action to prevent freezing by its concrete mortar , how to configure a retaining wall , a method of manufacturing the artificial reefs combined stepped blocks for eco ecology ecosystem restoration, eco-friendly method of construction blocks , artificial hobakdol eco-friendly eco- beam configuration process using the
[P] .
韩国专利：
KR20110057088A
. 2011-05-31
机译： 生产水泥砂浆以保护自然生态系统的一种环保方法。如何通过其混凝土砂浆为防止冻结的行动铺平道路，如何配置挡土墙，一种用于生态生态系统恢复的人工礁石结合阶梯式砌块的制造方法，一种生态友好的砌块方法，人造霍巴克多使用
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