Wiring Protection You Can Load Into a Container and Sell On
30 automatic extrusion lines, 30,000 tons a year, 250+ specifications of PVC trunking, conduit and fittings shipped to more than 68 countries.
Trunking Conduit and Fittings That Actually Fit Each Other
Covers snap on without tools, conduit bends cold from 5 to 180 degrees, and fittings come off the same moulds as the profile they clip onto.
Size Printed Profiles Ready for Your Own Brand Bag
Every bundle carries the size marking your installers look for. OEM colours, printing and packaging run on the same lines as our stock range.
What We Make
Shingfong extrudes rigid PVC wiring products in four ranges: cable trunking, electrical conduit, PPR water supply pipe and the fittings that join them. Profiles run from 10 mm conduit for telephone and data wire up to 100x50 mm compartment trunking for riser cupboards. Everything is extruded in one plant in Sihui, Guangdong, so a mixed container leaves on one invoice and one packing list.

PVC Conduit
Rigid and cold bending PVC conduit from 10 mm to 40 mm for concealed and surface wiring.
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PVC Rigid Conduit
Straight lengths with socketed ends for surface and in-slab wiring that has to stay where it was fixed.
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PVC Cold Bending Conduit
Pipe that turns a corner over a bending spring instead of waiting for an elbow.
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PVC Trunking
Surface cable trunking from 20x10 mm skirting duct up to 100x50 mm compartment trunking.
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PVC Electrical Trunking
Standard square profile trunking for power and lighting circuits run on the surface.
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PVC Trapezoid Trunking
Shallow and angled profiles for skirtings door surrounds and places where a square box would stand proud.
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PVC Compartment Trunking
Large section trunking with dividers so power and data share a route without sharing a compartment.
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Accessories and Fittings
Couplings clips elbows tees angles end caps and the double sided tape that sticks trunking to a finished wall.
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PPR Pipe
Hot and cold water supply pipe, one of the four ranges made in the Sihui plant.
Explore range →Every Product We Extrude
All 17 products across nine categories, from 10 mm conduit to 100x50 mm compartment trunking.

10mm PVC Conduit
The 10 mm PVC conduit is the smallest size in the Shingfong ladder and exists for one job: keeping small gauge wire separate and tidy.
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16mm PVC Conduit
16 mm is the smallest size most electricians will accept for a lighting circuit.
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20mm PVC Conduit
20 mm is the size most installers reach for first.
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25mm PVC Conduit
25 mm is the step where a run stops serving one circuit and starts serving several.
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32mm PVC Conduit
The 32 mm conduit carries the distribution leg: power supply, lighting and data cables sharing a route through an office building or a large house.
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40mm PVC Conduit
40 mm is the top of our standard ladder and is built for large diameter cable: factory power distribution, high current feeds and the main runs in multi-storey commercial buildings.
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PVC Skirting Trunking 20x10
The 20x10 mm skirting duct is the smallest trunking profile in the range and the one that sells by the thousand.
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Popular Size 25x16 PVC Cable Trunking
25x16 mm is the size most wholesalers sell more of than any other.
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PVC Cable Cover Trunking 40x25
A larger surface profile sold widely into South America as canaleta and elsewhere as cable cover.
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Double Sided Adhesive Tape for PVC Trunking
Adhesive tape turns a screw-fixed trunking run into a run that goes up without a drill.
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PVC Cable Chute 10x20 and 10x15
Mini trunking in 10x20 mm and 10x15 mm, sold in French speaking markets as goulotte de cablage.
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Flame Retardant PVC Cable Channel 20x10
The same 20x10 mm section supplied specifically where fire behaviour is written into the specification.
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PVC Trunking 25x16mm
The standard square profile in 25x16 mm: a base with two retaining lips and a cover that clips between them.
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PVC Trunking 60x40mm
At 60x40 mm the profile stops being final circuit containment and becomes a distribution route.
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PVC Cable Trunking Raceway 60x40mm
A 60x40 mm raceway supplied as the wire trunking line for installers who buy channel and cover by the bundle.
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PVC Arc Floor Trunking
Arc floor trunking has a curved top so a cable crossing a floor can be walked over and wheeled over instead of taped down.
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PVC Compartment Trunking 100x50mm
The largest trunking section we run: 100x50 mm with an internal divider so power and data travel the same route in separate compartments.
View product →Where Our Profiles Are Installed

Residential Buildings
Housing projects and home renovation, where the wiring has to be safe, cheap to install and invisible when it is finished.
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Commercial Offices
Fit-out and churn work, where power and data have to share a route and the layout changes every few years.
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Industrial Plants
Factories and heavy commercial sites, where the cable is larger, the environment is harsher and the run is longer.
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Hotels Hospitals and Schools
Buildings with high concentrations of people and assets, where installation is judged on safety fire behaviour and appearance.
See application →Four Problems Our Customers Bring Us
Mixed Containers Without Mixed Suppliers
Wholesalers normally buy trunking from one factory, conduit from another and fittings from a third, then wait for the slowest one. We hold 250+ specifications on 30 lines, so one purchase order covers the whole wiring aisle.
Covers That Stop Clipping After a Year
Trunking fails in the warehouse, not on the wall: soft compound relaxes and the cover no longer grips. Our profiles run on new PVC compound with in-process wall thickness checks, so a bundle opened next season still snaps shut.
Corner Fittings Nobody Stocks
Cold bending conduit bends from 5 to 180 degrees over a spring, so an installer turns a corner with pipe instead of waiting for an elbow that is out of stock.
Sizes That Do Not Match the Local Standard
Markets ask for different widths, wall thickness and colours. Custom mould design and OEM printing let you match what your market already installs rather than re-educating it.
Why Buyers Choose Shingfong
30 Years of Export
Founded in 1995 and selling abroad ever since, to more than 68 countries and regions and over 150 cities at home and abroad.
30 Automatic Lines
30 automatic extrusion lines give 30,000 tons a year of capacity, enough to absorb an urgent bulk order without pushing your delivery date.
250+ Specifications
A full size ladder in trunking and conduit, plus custom mould design when your market needs a profile we do not already run.
Three Inspection Points
First Inspection, IPQC while the line runs, and Final Inspection before loading, executed by our own QC team.
The Sihui plant covers 38.8 acres and houses all 30 extrusion lines under one management.
Three Inspection Points Before Your Container Closes
Quality control is not a certificate on a wall. Our own QC team stops the line at three defined points, and photographs of the finished goods reach you before the balance payment is due.
- First Inspection on the opening batch of every mould and colour run
- IPQC in-process checks on wall thickness, profile shape and colour while the line runs
- Final Inspection on packed goods before the container is loaded
How We Work With Buyers

OEM and ODM Private Label
Your profile, your colour, your printing and your bag, extruded on the same 30 lines as our stock range.
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Cold Bending Conduit System
Pipe, spring and technique together: how installers turn corners without elbows and what it removes from your order.
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Wholesale Container Supply
One order covering trunking, conduit and fittings, loaded as one high cube with one set of documents.
Read more →Guides From the Extrusion Floor

How To Choose the Right PVC Conduit Size
What each diameter in the 10 to 40 mm ladder is actually used for, and why over-sizing costs more than it saves.
Read the guide →
How To Cold Bend PVC Conduit With a Spring
The four step method our customers use to turn corners in pipe, and the mistakes that flatten a bore.
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Trunking or Conduit Which To Specify
A practical comparison for buyers deciding how much of each to put in a container.
Read the guide →Frequently Asked Questions
What is your minimum order quantity?
We quote by container load because that is how PVC profile ships economically. Tell us the sizes and the volume you have in mind and we will tell you what fits into one high cube and what it costs.
How long does production take?
Generally 7 to 15 days after we receive your advance payment. The exact date depends on the items and the quantity; loading one high cube takes 5 to 10 days.
What are your payment terms?
T/T with 30% as deposit and 70% before delivery. We send photos of the finished goods and the packed cartons before you pay the balance.
Can you produce to our samples or drawings?
Yes. We produce from your samples or technical drawings and can discuss building a specific mould for your profile.
Do you charge for samples?
Samples for confirming quality and colour are free of charge; the courier fee is paid by the buyer.
Which certifications do you hold?
RoHS, TUV and SGS. Ask us by email and we will send the current certificate copies for the specific range you are buying.
How do you pack the goods?
Generally in PE bags or carton boxes. Trunking is bundled and wrapped in printed white plastic bags; OEM printing on the bag is available.
Send Us Your Size List
Tell us the sections, colours and volumes you need and we will come back with a container plan and a price.

