China-based supplier & sourcing partner
China-based sourcing and supply coordination for wire-harness, connector and equipment teams. Send a specification, drawing or a few practical dimensions—we coordinate the model match, sample and quotation.
Start with 2:1 single-wall or 3:1 adhesive-lined tubing. We help wire-harness and cable-assembly buyers check fit, compare the proposed model and request a supplier-backed quotation.
Product-family values are representative. Every quotation identifies the proposed manufacturer, part number, dimensions, available document scope, MOQ and lead time.
Application first
Manufacturer and part number identified
Documents checked when required
Commercial terms stated per quote
You do not need a complete drawing. Cable diameters, a photo, an existing part number or a short application description can be enough to begin.
Scroll-driven product principle
Follow the installation principle as you scroll. Actual recovery behavior, temperature and final dimensions depend on the exact quoted product.
Select an expanded diameter that passes over the largest component.
Heat evenly using the product-specific installation guidance.
Confirm complete recovery, fit and the required finished coverage.
01 / Product families
Choose the closest family, then confirm fit, temperature, packaging and mandatory evidence against the quoted manufacturing model.
A practical 2:1 tubing family for electrical insulation, cable organization, identification and light mechanical protection. The current commercial reference is not presented as flame-retardant; mandatory flame or compliance requirements are matched to a separately verified exact model.
A 3:1 dual-wall tubing family combining a polyolefin outer jacket with a heat-activated adhesive inner layer for insulation, strain relief and moisture-resistant sealing around suitable cable joints and terminations.
Quick comparison
Historical size references are initial RFQ starting points. Temperature, dimensions and document scope follow the exact quoted model.
| Product family | Construction | Ratio | Operating limits | Reviewed nominal sizes | Typical direction |
|---|---|---|---|---|---|
| HS-SW2 | Single-wall polyolefin | 2:1 | Confirm exact model | 3 / 6 / 12 mm benchmarks | Insulation, bundling, identification |
| HS-DW3 | Polyolefin + hot-melt adhesive | 3:1 | Confirm exact model | 6.4 / 12.7 / 25.4 mm benchmarks | Joints, connectors, terminations |
Buying from China
Check the exact model, documents, sample basis, MOQ and delivery responsibility before approving a proposal.
Read the China sourcing checklist02 / Applications
The right tubing starts with the part, environment and installation—not a catalog code alone.
Insulation, branch protection, bundling and strain relief.
Crimped joints, soldered splices, cable exits and backshell areas.
Control panels, appliances, machinery and electrical assemblies.
Tubing matched to the electrical, thermal and dimensional requirements.
03 / Authorized source media
Supplier-authorized footage from a current manufacturing source. It supports source review and product understanding; exact product and document scope still follow the quotation.
An internal flame-test demonstration is available for source review. It does not prove that the current commercial price line or every size and colour meets a stated flame rating, and it is not a substitute for model-specific documentation.
04 / Documentation
Tell us what your project must meet. We review the available technical and compliance information for the proposed manufacturer's model, size, color and formulation.
Add a required standard to your RFQReports may cover only an identified sample, material, size or color. UL recognition, flame performance, RoHS/REACH status and CE applicability are confirmed separately for the exact quoted model.
05 / How it works
A lean process for overseas SMEs testing a source, sample or new application.
Share the application, dimensions, quantity and required compliance documents.
We compare manufacturers' models and review the available technical information.
The proposal identifies the manufacturer, part number, document scope, MOQ and lead time.
After approval, we coordinate production, packaging and shipment preparation.
A China-based supply partner
SLEEVANTA evaluates manufacturing sources and coordinates product selection, supplier communication, samples, quotations, packaging and shipment preparation. Every formal proposal identifies the manufacturer, part number, available document scope and legal seller/exporter before an order is confirmed.
Selection & procurement
Check construction, fit and document requirements before requesting a model match.
Use pass-over diameter, recovered diameter and the exact model's tolerances to shortlist heat-shrink tubing for a cable, splice or connector.
Read the guideCompare single-wall insulation with adhesive-lined dual-wall tubing for cable joints, connector exits and moisture-resistant sealing.
Read the guideUnderstand shrink ratio, diameter transitions and why a higher recovery ratio is not a substitute for an exact size and wall-thickness check.
Read the guideWhat to include in a heat-shrink tubing enquiry and what to verify in a supplier-backed quotation before sample approval or an order.
Read the guide06 / Request for quotation
Prepare your requirement below, then email it to us. You can also copy the details into your preferred email service.
07 / Common questions
Yes. A supplier reference reviewed on 30 July 2026 starts from one roll per size and colour, with approximately 1 m samples of selected standard items within China. Current availability, sample charges, international courier, cut lengths and final order terms require confirmation for the exact quoted item.
SLEEVANTA is an independent China-based sourcing brand. We evaluate manufacturing sources for each RFQ and identify the proposed manufacturer, part number, available documents and legal seller/exporter before an order is confirmed.
Certification and test scope can vary by manufacturing source, construction, size, color and formulation. Name every mandatory requirement in the RFQ so it can be checked against the exact proposed model.
Application, largest and smallest part diameters, quantity, color, length, temperature, mandatory documents and ship-to country. A drawing or current part number is helpful but not required.