Box culvert (Certified by the Japan Sewerage Association)
The manufacturing of box culverts is conducted in accordance with the factory certification system of the Japan Sewage Works Association, and is subject to regular rigorous quality control checks under the association's inspection system. The certification system of the Japan Sewage Works Association covers all general matters related to box culverts, including product quality, manufacturing facilities, and quality management systems, and only factories that pass the inspection are certified. Our company has received this factory certification, and the box culverts produced there bear the certification mark of the association. For other functions and details, please contact us.
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basic information
We manufacture the following products in a nationwide standard: ○ RC box culverts (made of reinforced concrete) ○ PC box culverts (made of prestressed concrete). 【Features】 ○ They are certified materials by the National Box Culvert Association and the Japan Sewage Works Association (Type I), as well as JIS standard certified products. ○ They comply with the "Guidelines for Road Earthworks and Culvert Works" by the Japan Road Association. ○ We also offer KC type products (standardized by our company) that comply with the above standards. ○ For large sizes, we can accommodate two-part and four-part configurations.
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【Purpose】 Sewer construction ○ Certified by the Japan Sewer Association
Company information
Keikon Co., Ltd. is a comprehensive construction company engaged in the design, construction, manufacturing, and sales of concrete secondary products such as retaining walls, road products, and fire water tanks, as well as bridge and tunnel construction and slipform construction methods, boasting a top-class position in the industry as a manufacturer of concrete secondary products. In terms of the environment, we have established our own internal standards and label our products that are recognized for reducing environmental impact with the "Keko Mark." We will continue to focus on the development of related products more than ever before, aiming for "coexistence between people and nature."
