Perfect has been walking only one way with more than 100 patentsnew technologiesextensive experienceknow-how. PERFECT Co., Ltd. more functionalized the differentiated performance of storm & sewage manholeswater & sewage pipes that have been expanded in fundamental social development projectssocial overhead capitalsuccessfully developed the products highly resistant for earth pressure, including one-touch water & sewage pipes with perfect water tightnessexcellent durability, corrosion-resistant PE manholes,a variety of fittings. These products have been recognized as eco-friendly products, thanks to their excellencetechnology.