A large number of temporary piping for civil engineering works, concrete pumping pipes, etc. are featured! We propose optimization of temporary piping systems!
You can easily connect to PVC fittings, leaving the cast iron pipes for drainage.
Drainage pipe for landslide prevention! Collection efficiency = water volume × collection capacity × water flow capacity!
High-performance rubber joint built-in! Excellent high-strength pipe that meets diverse performance requirements.
Equivalent drainage capacity to circular pipes! Ideal concrete products for buried street gutters and buried drainage ditches.
You can choose short pipes with effective lengths of 600mm or 800mm! They excel in adaptability to sharp curves according to the site conditions.
Secure a large water surface with space-saving design! Anti-slip finishing and measures against debris accumulation included!
Porous concrete with small voids throughout the product! It suppresses the runoff of rainwater, which is a source of urban flooding!
We manufacture and sell a variety of products such as hand holes, catch basins, well pits, special pits, floor slabs, and drop structures!
To install a newly constructed cable trough within the limited site, we will use a "cable trough with soil retention"!
Corrosion-resistant piping with over half a century of proven performance in chemical products.
Various variations of exterior products that pursue safety and convenience, which can be differentiated according to installation conditions.
It is a resin concrete pipe with high strength, high durability, and internal water pressure resistance.
Adopted for shield construction in the Aqua Line and the Tokyo Metropolitan Subway Oedo Line! Used for applications such as water and air.
A wide lineup of products! Featuring a rich selection of arch culverts and high-touch walls.
A wide variety of sizes available! (One company) Road Precast Concrete Products Technology Association certified products.
It is possible to eliminate the concrete exposure! Introducing the sloped box culvert.
It is an adhesive that can bond even in water and on wet surfaces, with quick-setting properties that improve work efficiency on site. It has a proven track record for joining sewer pipes.
This is a high-strength pipe that achieves stable quality and strength through the Baikon manufacturing method!
We provide civil engineering materials that combine cost and performance.
We accommodate even small requests! An M16 insert is installed on the top for easy construction.
Assisting with speedy construction that cannot be done on-site!
A box culvert with seismic resistance! It also excels in constructability and cost-effectiveness.
Manufactured using a rational molding method through vibration and compression! Construction is possible with shallower soil cover.
Absorbs excessive deformation! Supports Level 2 seismic motion with a maximum ground distortion of 1.5%.
High strength, high durability, and resistant to internal water pressure! Multifunctional sewer pipes.
A wide variety of products such as road products and water supply and drainage products are featured!
Easy and reliable connection using sleeve method / Inner and outer surface wave pipes that withstand high embankments.
Lightweight and easy to handle; perforated and non-perforated pipes with excellent impact resistance.
It is a flexible polyethylene pipe that excels in cold resistance and corrosion resistance.
It is not affected by acids, alkalis, or salts, and does not corrode even when buried in the ground.
It is flexible and can adapt to soft ground and frequently changing terrain.
Good news for pipe rehabilitation methods using aging sewer pipes! It's an all-around support system that reduces on-site work.
Processing is possible even outside the processing range! All products undergo air pressure testing after manufacturing.
Support for on-site population reduction! We propose considering the looping of piping and calculating friction losses.
Publication of the construction overview, constraints, and the background for adopting flexible piping for underground installation.
Compared to conventional methods, welding man-hours have been reduced by 1/6 (83%)!
A wide variety of association standard box culverts and two-part box culverts are available!
Standard products from the National Box Culvert Association! Offering standard and invert shapes!
There are two types, K-type and T-type, which can be used according to the application! Box culverts with earthquake-resistant rubber rings.
Ensures high water resistance! Even against slight uneven settlement of the ground, flexibility is demonstrated, eliminating concerns about leakage!
Introducing the underground joint trench for electrical wiring, which is smaller and more maneuverable compared to conventional cab systems!
The connection structure is a mortar-filled joint connection! Introducing the two-part box culvert!
Connect divided components using mortar-filled joints! Full precast segmented box culvert.
Introducing the PRC structure split-type box culvert, featuring on-site casting in the base section!
We realize an energy-saving and highly efficient hot water floor heating system using cross-linked polyethylene pipes.
Excellent permeability! Concrete that forms continuous voids suitable for use in pipes and drainage systems.
This is an acrylic sheet made using a transparent casting method that emphasizes workability. It has excellent thickness precision and, due to its high molecular weight, exhibits minimal warping and expansion.
Acquisition of JIS! Introduction of cast iron composite flanges that comply with environmental regulations and do not contain environmentally harmful substances.
You can manage the remaining screws and apply the correct wrench! You can check for leaks from the inside and the presence of water intrusion from the outside.
Introduction of a large box culvert with internal dimensions of 3,100 × 1,500 to 4,000 × 4,000!
A super large culvert with an internal width of 4000 to 9000 mm and an internal height of 2000 to 4000 mm, divided into two parts!
We also offer various linings, coatings, thermal spraying, and nitriding treatments to solve product troubles!
A biocon method with low CO2 emissions! Demonstrates efficient joining and excellent water-stopping properties.
Excellent strength and durability! Economical pipes that excel in various fields of civil engineering and construction work.
If you specify the shape, dimensions, and position of the side opening, we can also accommodate drilling!
We will introduce examples of custom-made products that we have manufactured and delivered.
Introduction of a case where only the old upper part was replaced while leaving the main body intact.
Operator skills are also improved! This is a walking product with dimensions of 1000□×H1350.
Introducing a case of delivering a two-part PC drainage pit with four ladders!
A pellet stove exhaust and intake pipe that can be maintained from the front and allows visibility to the back! Its cross design makes maintenance easy!
Introducing permeable polycon products that promote the creation of safe towns free from flooding, surrounded by water and greenery.
Introduction to the construction achievements of concrete cable troughs, home cover stones, and running boards.
Introducing construction results using concrete duct covers.
Introducing construction results using cable trough straight type and JR type hand holes.
Introducing construction results using cable trough straight sections.
Introducing construction results using cable trough straight sections.
Using a lightweight trough that can be upgraded without changing the external dimensions! It is also excellent in resisting freeze damage and salt damage due to its eco-friendly composition.
Introducing construction achievements using cable troughs for straight lines, single branches, and curves.
The handle is original, making installation convenient! It is used at sites where vehicles may pass overhead.
Publication of the construction overview, constraints, and the background for adopting flexible piping for underground installation.
Box culverts that accommodate everything from small cross-sections to large-scale structures! Custom-shaped products are also available.
We clearly classify and showcase a variety of permeable concrete products!
Durable and long-lasting against wear! Introducing lightweight, sturdy, and eco-friendly resin concrete!
Of course, we handle striped steel plates and steel plates, as well as patterned steel plates and vertical striped steel plates, using laser processing machines and bending processes! Please let us know your requests for products you would like us to manufacture.
This is the logistics division of OG Group, "Okajima Logistics Co., Ltd.", for those looking for direct delivery, charter services, and Unic trucks. Please feel free to consult with us.
Leave the piping materials, industrial chemicals, and industrial machinery suction gauges to us.
It is possible to install a lining on the interior for corrosion prevention! It has high toughness and excellent durability during earthquakes.