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Ideal for absorbing large displacements! Multiple layers of thin plates have been stacked to increase pressure resistance.
- pump
- Water and sewerage pipe fittings
Excellent corrosion resistance and hygienic! The lost-wax precision casting results in a finely textured and stable structure with high strength.
- Fittings
- Piping materials (copper pipes, cast iron pipes)
- Water and sewerage pipe fittings
Available in gray and black (recycled) in various sizes. We have prepared molded products ranging from 13 to 50.
- Fittings
For agricultural machinery, construction machinery, etc.! It is possible to expand from one type of round pipe to various shapes and sizes.
- Steel
We respond to your needs with stable quality, a wide variety of materials, metals, and dimensional ranges!
- Fittings
- Piping materials (copper pipes, cast iron pipes)
- Water and sewerage pipe fittings
A maintenance-free expansion joint developed for water pipe bridges and bridge-mounted pipes.
- Foundation construction
We have a wide variety of banded elbows, different diameter tees, and five-way fittings available.
- Fittings
Adopted for industrial air conditioning systems! We will provide design proposals according to the equipment and production processes.
- others
Demonstrates stable sealing performance! Reduces plumbing labor by eliminating the need to wrap sealing tape!
- Fittings
- others
Easy to implement! The setup for starting operations, such as registering work patterns, is very simple.
- others

We will exhibit at the Industrial Exchange Exhibition 2011 at Big Sight.
We will be exhibiting at the 14th Industrial Exchange Exhibition 2011, the largest trade show in Japan organized by small and medium-sized enterprises. Event Dates: October 26 (Wednesday) to October 28 (Friday), 10:00 AM to 5:00 PM Location: Tokyo Big Sight, East Hall 5 & 6 http://www.sangyo-koryuten.jp/ Booth Number: Information - 37 (Joint exhibition with Haiburic Co., Ltd.) http://sangyo-koryuten.jp/search/popup.php?id=2324 *Admission is free, but pre-registration is convenient. https://www.sangyo-koryuten.jp/registration/ Alternatively, we can send you an invitation ticket if you wish. At this event, we will be showcasing the following: - IC card-compatible attendance management system "GreenNuts・MC Office Time Management" - Network-compatible entry and exit management system - Key management system "Digital @ IC Key Terminal & Archive System & Lock" - Energy-saving CCFL lighting "E・COOL" - Customer management system "Grip" - fully integrated with OBC's Commercial Business software.
The expansion and contraction direction is along the axis and perpendicular to the axis! It is suitable for absorbing large displacements that cannot be absorbed by a single type.
- pump
- Water and sewerage pipe fittings
A diverse lineup including sewer pipe inspection mirrors with power lights and power LEDs is featured!
- Work tools
Exclusive for pipe construction! Surveying equipment for quickly determining the centerline (axis) of pipes.
- Work tools
- Distance measuring device/length measuring device
- Other measuring instruments
Light that achieves energy savings, long lifespan, and visibility! Introduction to energy-saving lighting.
- Special lighting
Easy assembly, flexible design, and environmentally friendly! Available in two colors: black and white.
- Fittings
Permanent measures for water drainage, strengthening of the borehole pipes, and halving the life cycle cost!
- Pipeline Construction
Changed a thin iron pipe to a plastic pipe! A case where it was redone with a new route considering future needs.
- Piping materials (plastic pipes)
Excellent corrosion resistance! The female thread side has a flexible mechanism design, allowing for reliable installation.
- Gas equipment
A wide variety of stainless steel flanges with excellent quality are available.
- Piping materials (copper pipes, cast iron pipes)
- Water and sewerage pipe fittings
This is a construction method to prevent the rupture of underground buried lifelines due to liquefaction phenomena.
- Earthworks
- Ground improvement
- Pile and foundation work
The material can be stored for 3 months! Using light-curing resin that hardens when exposed to light and acid-resistant glass fibers, high-strength FRP pipes can be constructed quickly.
- Special Construction Method
- Sewerage facilities
- Renovation and repair methods
Optimal Teflon hose for discharging used fluids.
- Sanitary fixtures
We will mass-produce prefabricated piping by bonding PVC pipes and PVC fittings. We can handle everything from material procurement to cutting, assembly, bonding, inspection, packaging, and shipping.
- Prefab
We deliver all materials in one stop! Leave it to us for piping materials, building materials, and electrical materials.
- System kitchen
- System bath (sauna, shower, etc.)
- Engineered Flooring

If you provide the drawings to our company's SE, we will create CAD data and pre-cut the resin pipes as needed, which will reduce material costs. We will also pick and deliver them to the site, significantly reducing labor and construction time.
If you send the drawings to Watanabe Pipe upon request, we will create the drawings using the header method/polybutylene pipes, package the total rolls, and deliver them along with the design plans. We pride ourselves on providing services that offer significant benefits to our customers. Please feel free to contact us. ■ Four Points - 75 minutes of time savings!! - Improved construction quality and assurance of building quality - Delivery of design plans and precut materials without additional charges on the usual price - Easy ordering 1. Creation of indoor water supply and hot water piping equipment drawings for single-family homes (header method) 2. Precutting of resin pipes and picking of fittings for delivery 3. Delivery to your desired location within 5 to 7 business days after approval of the design drawings 4. Delivery of water supply and hot water drawings in data format (DXF/JWW/PDF) 5. Design drawings will be stored by our company for 10 years after on-site construction * The product standardly uses Bridgestone's Push Master. ■ Benefits 1. We take on the task of creating design drawings and extracting drawings. 2. Since shipping is done by total roll count, there is no need to hold excess inventory. 3. Delivery of design plans and precut materials to specified locations at the usual price. 4. Storage of design drawings ensures quality and traceability. 5. Provision of drawings improves construction quality on-site.
Introduction to general high-pressure water cleaning methods and potential problems that may arise!
- Drainage and ventilation equipment
- Special Construction Method
A water supply and drainage pipe maintenance device that operates continuously in a semi-permanent manner without requiring any power other than water flow! For the removal of red rust and scale in di...
- others
Flame-retardant compliant products of JIS C 3653 Appendix 1 (regulations)! The standard length is 4m.
- Piping and electrical wiring materials