Reliance Trenchless Technology
About Reliance Trenchless
Your reliable point-repair products provider
Reliance Trenchless Technology (RTT) brings together three specialist manufacturers to supply point-repair materials and equipment for trenchless pipe rehabilitation through one point of contact.
- EU conformity attestations
- CE
- Countries supplied
- 37
- Founding manufacturers
- 3
- Manufacturing heritage since
- 1997
Who we are
Three specialist manufacturers one point of contact
Wenzhou Wantuo
Wenzhou Wantuo Pipeline Equipment Co., Ltd.
Produces precision pipeline sealing components, including internal pipe seals and Instant-Lock repair sleeves, for pipeline leak repair and maintenance, designed for easy installation and long-term performance.
Qingdao Xinya
Qingdao Xinya Environmental Technology Co., Ltd.
Has researched, developed and produced trenchless repair materials since 2010, focusing on CIPP resin, high-pressure pipe plugs and repair packers, with long experience in material formulation for different pipeline conditions and repair scenarios.
CNLG
CNLG Construction Machinery Co., Ltd.
Manufactures mortar sprayer machines, the equipment used to spray and grout manholes, pipelines and culverts in trenchless rehabilitation and reinforcement work.
Our mission
Serving the world with the best collections of trenchless materials
RTT is jointly owned by its three partners, who keep improving existing products and developing new trenchless technology together in research, production and market development. We publish the information buyers need to choose with confidence.
EU TEST conformity attestations for six product groups, with published specifications and brochures
Supplying customers in 37 countries across six continents
Three founding manufacturers: resin, sealing and spray equipment through one enquiry
Manufacturing heritage since 1997, supplied factory-direct by our founders
Trade shows
Meet us at industry exhibitions
We present our products at trenchless and pipeline exhibitions in China and abroad.
Trenchless Asia 2026, Thailand
12th China (Chengdu) International Pipeline Expo
Wuhan International Pipeline Expo, China
Trenchless Middle East 2024, Dubai, UAE
Shanghai International Pipeline Expo, China
NO-DIG Moscow 2023
Kuala Lumpur, Malaysia
Chongqing, China
Nanjing, China
Trade shows
Exhibition networking
Meeting partners and clients at exhibitions and on visits abroad.
Exhibition, Russia 
Exhibition, United Arab Emirates 
Trenchless Middle East 2024, Dubai, UAE 
Trenchless Middle East 2024, Dubai, UAE 
Trenchless Middle East 2024, Dubai, UAE 
Trenchless Middle East 2024, Dubai, UAE 
Saudi Arabia 
Clients in Russia 
Clients in Russia 
Exhibition, Shanghai 
Clients in Vietnam 
Clients from Africa
Production and warehousing
Where our products are made and stocked
Logistics
Global logistics by sea, land, air and rail
We ship by the route that fits your project timeline, with orders wrapped, labelled and crated on pallets for export.
Sea freight
FCL and LCL ocean shipping to major ports worldwide.
Land freight
Door-to-door trucking for regional and cross-border delivery.
Air freight
Fast air cargo for urgent or time-sensitive orders.
Rail freight
Cost-effective rail transport for large-volume inland shipments.
EU TEST
EU conformity attestations
EU TEST has verified the technical files for six of our product groups against the EU legislation and standards listed. These are voluntary attestations, not Notified Body certificates.
CIPP resin
- Verification no.
- TD49992501
- Standards
- EN ISO 11296-1:2018; EN ISO 23856:2021
- Technical file
- Construction Products Regulation (EU) No 305/2011
- Valid
- –
Glass fiber
- Verification no.
- TD49752501
- Standards
- EN ISO 23856:2021; EN ISO 13438:2018; EN ISO 12960:2020
- Technical file
- Construction Products Regulation (EU) No 305/2011
- Valid
- –
Repair packers & pipe plugs
- Verification no.
- TD49432501
- Standards
- EN ISO 12100:2010; EN 1610:2015
- Technical file
- Machinery Directive 2006/42/EC
- Valid
- –
Instant-locks & internal pipe seals
- Verification no.
- TD50022501
- Standards
- EN 681-1:1996+A1:1998+A2:2002+A3:2005; EN 295-4:2013; EN 10088-2:2024; EN 16397-2:2014
- Technical file
- Construction Products Regulation (EU) No 305/2011
- Valid
- –
Point-repair pretreatment jacks & RSS spraying system
- Verification no.
- TD49732501
- Standards
- EN ISO 12100:2010; EN 60204-1:2018
- Technical file
- Machinery Directive 2006/42/EC
- Valid
- –
R70 mortar
- Verification no.
- TD49742501
- Standards
- EN 998-1:2016
- Technical file
- Construction Products Regulation (EU) No 305/2011
- Valid
- –
Check any verification number on eutest.com.tr
Our SGS-audited supplier profile (report QIP-ASI2531373) is on Made-in-China.com
Customer distribution
Trusted by customers in 37 countries across 6 continents
From our headquarters in Wenzhou, Zhejiang, China, we ship pipe plugs, repair packers, sleeves, seals, resin systems and mortar equipment to pipeline repair teams across Asia, the Middle East, Europe, Africa, the Americas and Oceania. Export packing, published specifications and one point of contact for three manufacturers make cross-border projects simple.
Asia
India · Indonesia · Kazakhstan · Kyrgyzstan · Malaysia · Myanmar (Burma) · Philippines · Singapore · South Korea · Sri Lanka · Uzbekistan · Vietnam
Middle East
Qatar · Saudi Arabia · United Arab Emirates
Europe
Austria · France · Germany · Hungary · Italy · Netherlands · Poland · Romania · Russia · Spain · United Kingdom
Africa
Congo - Brazzaville · Nigeria · South Africa
North America
Canada · Mexico · United States
South America
Brazil · Chile · Colombia
Oceania
Australia · New Zealand
Tell us about your pipe
Send the pipe diameter, material, defect and quantity. We will suggest products for you to confirm.
- Measured internal diameter at the defect, not nominal DN alone
- Pipe material
- Defect type and length
- Medium and pressure, if known
- Destination and documents needed