Electrical PVC Conduit Circular 4-Way Box – 16 / 20 / 25mm
Deep or shallow body, knock-out entries, screw lid. Ideal for lighting loop-in points.
View DetailsFoshan Shunde Langli Hardware Electrical PVC Co., Ltd. has been moulding rigid PVC electrical accessories for more than three decades. Wholesalers, electrical distributors and project contractors in over 60 countries buy our conduit elbows, couplers, tees, circular boxes, mini-trunking and switch boxes because the sockets fit first time, the compound is self-extinguishing, and containers ship complete. Roughly 97% of our output is exported, so every dimension, carton and label is prepared with the overseas jobsite in mind.
Mix conduit, fittings, trunking and boxes in a single container and keep your electrical range consistent in colour, wall thickness and socket tolerance. Sizes run from 16mm to 50mm conduit and 10×10mm to 200×100mm trunking.
Rigid heavy / light gauge conduit, 2.9m & 3m lengths, plain or belled end, UV-stable white and orange compounds.
View rangeElbows, inspection bends, tees, couplers, adaptors, saddles and bushes machined to match BS and DIN conduit.
View rangeFlat tees, internal/external angles, couplers and end caps that clip tightly onto our trunking profiles.
View rangeSelf-adhesive mini-trunking and cable ducting from 10×10mm to 200×100mm, in white, ivory and wood finishes.
View rangeFlush and surface mount boxes in 1–4 gang, GB / BS / South-American patterns with reinforced screw pillars.
View rangeCircular 1–4 way boxes, deep boxes and loop-in boxes with knock-out entries for 20mm and 25mm conduit.
View rangeThese references repeat order after order because they cover the most common wiring jobs — surface trunking runs, conduit junctions and TV / data cable concealment.
Deep or shallow body, knock-out entries, screw lid. Ideal for lighting loop-in points.
View DetailsSnap-on lid, pre-punched base option, supplied with matching angles and tees.
View DetailsOne supplier covers mini-trunking to large cable ducting; consistent wall thickness.
View DetailsRigid PVC-U, impact tested at low temperature, halogen-free options available.
View DetailsContainer-load pricing with export cartons, pallet or floor-loading options.
View Details16×16, 20×10, 25×25, 39×19, 60×40, 100×50mm and further profiles in stock.
View DetailsLow-profile design for retail and residential channels; wood-grain finish available.
View DetailsTape-backed base for fast retrofit work where drilling is not permitted.
View DetailsFoshan Shunde Langli Hardware Electrical PVC Co., Ltd. was founded in 1989 in Leliu Town, Shunde — the heart of China's plastics cluster. We compound, mould, assemble and pack in one site, which is how we keep socket tolerance and colour consistent across 900 sets of moulds and 32 injection machines.
We exhibit at international electrical and building-material fairs every year and welcome buyer visits, third-party audits and video walk-throughs of the moulding and packing lines.


We pursue meticulous workmanship and provide the paperwork your import clearance, retail buyer or project consultant will ask for — CE conformity and RoHS substance testing.





Buyers tell us this table saves an email round-trip. Figures are typical production values — confirm the exact drawing with our engineers for tender work.
| Item | Size Range | Material / Grade | Colour | Typical Use |
|---|---|---|---|---|
| PVC Conduit Pipe | 16 / 20 / 25 / 32 / 40 / 50mm · ½"–2" | Rigid PVC-U, light & heavy gauge | White, orange, grey | Concealed & surface wiring |
| Conduit Fittings | 16–50mm matched sockets | PVC-U, self-extinguishing option | White, black, grey | Bends, junctions, terminations |
| Cable Trunking | 10×10 – 200×100mm | PVC-U, 0.8–1.5mm wall | White, ivory, wood grain | Surface cable management |
| Trunking Fittings | Matched to all trunking profiles | PVC-U injection moulded | White, ivory | Angles, tees, couplers, end caps |
| Junction / Switch Boxes | 1–4 way, 1–4 gang, 86×86 & BS patterns | PVC-U with brass insert option | White, ivory, black | Loop-in points, accessory mounting |
Practical notes written by our engineering and export team for installers, buyers and specifiers.
Efficient cable management starts with the profile. How trunking size, lid retention and matching angles affect installation speed and long-term safety.
Read the guideLoose sockets, brittle elbows and off-spec wall thickness cost labour hours. The inspection points professional buyers should insist on.
Read the guideHow self-extinguishing PVC compounds are formulated, what glow-wire and V-0 ratings mean, and where fire-safety codes require them.
Read the guideSend us your size list, target standard and destination port. Our export engineers reply with an itemised offer, carton data and a container loading plan — usually within one working day.
Full size charts, carton quantities, CBM data and colour options for conduit fittings, cable trunking and electrical boxes — everything you need to build a quotation.
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