We are seeking competitive offers for prestressed corrugated concrete duct pipes with metal wave structure. Suppliers should provide detailed specifications and pricing terms.  
Please ensure the quotation includes material composition, dimensional standards and relevant certifications.  
Suitable manufacturers with proven experience in infrastructure construction materials are preferred.

We require an automated solution for producing stainless steel coil assemblies with these specifications:  
- Processes 12m DN25 and 14m DN32 corrugated stainless steel tubes with welded stub pipes  
- Achieves 350mm coil diameter through controlled winding  
- Maintains precise pitch/tension to prevent tube damage  
- Integrates pre-welded wire cage application or cage-forming capability  
- Enables quick changeover between different tube lengths/coil specs  
- Complies with CE/UKCA safety standards  

Seeking either:  
1) Customized coil winding machine adaptation for stub ends and cage placement  
2) Complete turnkey system including winding, cage integration, and basic QC checks  

Vendors must confirm manufacturing capability, lead times, and budget requirements. Sample components available for testing if required.

I have a enquiry in pvc conduit.

RFQ ?￠???? HDPE Telecommunication Ducts (Delivery to Dammam Port). Request best offer for: 2744729m of 50 mm HDPE duct - Double Wall (50/38 mm) / (Coil (200 m)), Corrugated Duct Ornage No Sub Duct; 82494m of 110mm HDPE duct (110/95 mm) / Pipe (6 m length), Corrugated Duct Orange No Sub duct; 1051737m of 110mm HDPE duct with 5 x 32mm sub ducts, Corrugated Duct Orange with subduct 5x32; 576000m of 50 mm HDPE duct, HDPE Rigid PLB Silicone Conduits with Pull rope. Delivery Term: Up to Dammam Port, Saudi Arabia. Please include: Unit price, total cost, delivery time, and validity of your offer.

hi, i am looking for filter sock for corrugated pipe

I would like to purchase drainage plastic perforated pipe to use underground
plastic drainage pipe.

We have enquiry of the 100mm filter sock for AG perforated pipe. 

We a have a firm buying for the corrugated pipes and joints for ongoing project in Qatar. Kindly find attached the RFQ with data sheet ( previous supplied from Italy origin for your reference ) Find attached the data sheet for corrugated pipes and joints, quote as per the data sheet or equivalent. Please quote FOB China Port or advise the additional Sea freight charges to Doha Sea port Acceptable origin : Any reputed manufacturer from China are acceptable Submit the Product Data sheet, ISO Certification along with your offer Advise payment terms Best possible delivery period required Validity of the quote should be at least 30 days Submit the proposal latest by 30th  Aug. 

Inquiry About HDPE Double Wall Corrugated Pipe

hello i am interested in your HDPE flexible twin wall double wall corrugated perforated pipe. Please add me on whatsapp or wechat