China has a deep supplier base for lifting slings, lashing straps, nets and rigging hardware. That depth creates a wide range of prices, but it also makes supplier selection part of the specification. Two quotations for the same nominal size can describe different materials, rating bases, test methods and document packages. The purpose of this guide is to make those differences visible before a purchase order is issued.
1. What separates a factory from a trading company?
A trading company is not automatically a bad supplier, but it changes the risk profile. The production schedule, material grade and test records sit with someone else, and a nonconformity may pass through several hands before it reaches you. If the supplier presents itself as a manufacturer, test that claim before discussing price.
Ask for the business licence and check whether its scope covers the actual production activity; ask for a short live video of the weaving, cutting, sewing or test area; ask which test equipment is used for tensile, proof-load or batch checks; and ask for a traceability example that links a finished label to a material batch. A virtual factory tour is useful, but a recorded walk-through of the line and test bench is more informative than a gallery of exterior photos.
For a factory-direct supplier, the commercial conversation should be able to move from “what is your price?” to “which material grade, construction and test method will you use?” without a hand-off.
2. Decide the rating basis before you compare price
The most common sourcing error is comparing a WLL quotation with an LC or MBS quotation as if the numbers were interchangeable. They are not. A lifting sling is rated by working load limit (WLL) in tonnes; a ratchet lashing is rated by lashing capacity (LC) in daN; a towing strap is rated by the complete assembly’s minimum breaking strength (MBS) in kilograms. The applicable standard and design factor also differ.
| Product family | Primary rating | Standard or reference to agree | What the RFQ should ask for |
|---|---|---|---|
| Lifting slings — webbing | WLL (t) | EN 1492-1; 7:1 design factor for the EU series | Material, ply, width, EWL, label, test certificate, DoC |
| Lifting slings — round | WLL (t) | EN 1492-2 for roundslings up to 40 t; above that referenced to it and engineered | Construction, cover, WLL table basis, EWL, test certificate |
| Single-use slings | WLL (t) | DIN 60005:2018-07; 5:1 series | One-way marking, colour/label, test report, batch traceability |
| HMPE slings | WLL (t) | Construction and test methods referenced to EN 1492-2 (round) / EN 1492-1 (webbing); HMPE values per ISO 18264; AS 4497 for Australian round slings | Fibre grade, creep class, cover, design factor, temperature range |
| Ratchet lashing | LC (daN) and STF (daN) | EN 12195-2 for hand-operated web lashing | LC, STF, handle position, BF ≥ 2 × LC, “not for lifting” marking |
| Cargo securing nets | Declared LC (daN) | No product-specific harmonised net standard; calculation principles referenced to EN 12195-1; test method agreed with the buyer | Mesh, border rope, attachment hardware, assembly LC, test report |
| Lifting nets | WLL (t) | No product-specific harmonised net standard; rated with reference to EN 1492-1 test methods; engineered and tested per configuration | Configuration drawing, lift points, WLL basis, proof-load record |
| Vehicle towing straps | Assembly MBS (kg) | No single harmonised product standard; rated by assembly MBS | End fittings, MBS, length, intended low-speed towing duty |
Do not write “CE” for every family. CE marking under Directive 2006/42/EC applies to the lifting accessories within its scope, by the manufacturer’s declaration. Cargo-lashing and towing products have their own rating and documentation basis and are not lifting accessories. Ask each supplier to state the exact product scope of any CE claim.
3. What to put in the RFQ
A complete RFQ reduces the number of quotation rounds and makes the offers comparable. It also creates a written record if the delivered goods differ from the offer. Send the following as one package:
| RFQ field | What to state | Why it matters |
|---|---|---|
| Application | Lifting, lashing or towing; indoor/outdoor; offshore, marine, workshop or road | Determines the product family and the applicable standard |
| Rating | WLL (t), LC (daN) or assembly MBS (kg), including the hitch or lashing arrangement | Prevents a quotation against the wrong rating basis |
| Dimensions | EWL or reach, width, mesh size, border rope, end-fitting type | Changes material consumption, tooling and test setup |
| Environment | Temperature, chemicals, salt water, UV, abrasion and edge conditions | Rules out materials that cannot meet the duty |
| Marking and labels | Buyer name, part number, WLL/LC/MBS, length, batch code, language | Avoids a second production run for labelling |
| Packaging and delivery | Carton/pallet, destination, Incoterms, named port or place | Makes freight and risk allocation comparable |
| Documents | Test certificate, MTC, DoC, type-test or third-party report, COO if required | Separates a low price from a complete delivered package |
| Volume and timing | Annual volume, first order, required date, sample approval date | Sets MOQ, material purchasing and production slot |
If a value is not fixed yet, write “to be confirmed” rather than inventing a number. A supplier can quote a range and state the assumptions; an invented WLL, LC or MBS becomes a contractual figure that may be impossible to meet.
4. Commercial terms that belong in writing
Agree the Incoterms® 2020 rule and the named port or place, not just “FOB” or “CIF”. Confirm what the price includes: packaging, marking, test reports, loading, export clearance and freight. State the payment schedule, currency, invoice details and which party pays bank charges. If a tool, logo or custom label is involved, state who owns it and what happens if the order is cancelled.
Define the lead time from a clear starting point — usually specification approval and receipt of deposit — and state whether it covers production only or also inland transport and export clearance. A “3–7 day” standard-size figure and a “2–4 week” custom figure are production windows, not a promise of arrival at the buyer’s site.
5. Three inspection gates and the document set
Inspection is more effective when it is planned into the order rather than requested after production. Use three gates: approve the pre-production sample against the RFQ; check the first production run for material, construction, dimensions and marking; and complete a pre-shipment inspection of the finished goods, packaging and documents. Record the results and keep them with the shipment.
| Document | Lifting slings | Ratchet lashing | Cargo / lifting nets | Towing straps |
|---|---|---|---|---|
| Individual proof-load certificate | Per sling | Not applicable | Per net configuration where specified | Not applicable |
| Batch material certificate (MTC) | With shipment | With shipment | With shipment | With shipment |
| Type-test report | With the applicable series or on request | With the applicable series or on request | Per configuration / on request | Per assembly type / on request |
| Declaration of Conformity | For CE-marked lifting products | Not a CE lifting product | Not a CE lifting product | Not a CE lifting product |
| Traceability code on label | Yes | Yes | Yes | Yes |
If a supplier cannot say which document ships by default and which is available only on request, the document package is not yet under control. That is a more useful red flag than a missing logo.
6. Red flags worth walking away from
Be cautious when a quotation gives only a certificate image with no certificate number, issuing body or tested specification; when the supplier cannot state the material grade or the standard behind the WLL/LC/MBS; when “same specification” is offered without a drawing, label or batch record; when the test equipment is described but never shown; when the lead time is materially shorter than the material and testing route implies; and when the supplier will not put Incoterms, payment and the document list in the quotation.
Ask these questions before a first order. A supplier that answers them precisely is easier to audit later, even if its unit price is not the lowest.
7. FAQ
What is the minimum order quantity?
It depends on the construction, material and labelling. Sample orders can start from 10 pieces for many standard constructions; production MOQs are quoted against the specific product, colour and packaging. Ask for the MOQ in writing instead of relying on a catalogue page, because a custom label or a non-standard length can change it.
Can I get a sample before placing a production order?
Yes. Small-value standard samples are normally free, with the buyer covering freight; custom, HMPE or high-value samples are quoted separately. Approve the sample against the RFQ and keep the signed sample record — it becomes the reference for the production inspection.
What lead time should I expect?
Standard sizes are typically quoted at 3–7 days and custom-engineered orders at 2–4 weeks, measured from specification approval and deposit. International transit, customs and destination delivery are additional. The quotation should state the starting point and what is included.
Which certificate should I ask for?
Ask for the document that matches the product family: EN 1492 test evidence and a DoC for CE-marked lifting slings; DIN 60005 evidence for single-use slings; EN 12195-2 test data for ratchet lashing; declared-LC test reports for cargo nets; assembly MBS records for towing straps. A generic “CE certificate” is not a substitute for the product-specific test and material records.
How do I verify a factory before the first order?
Check the business licence scope, request a live or recorded walk-through of the production and test areas, ask for a traceability example from label to material batch, and ask for two references in your market. If the order value justifies it, use a third-party factory audit or an inspection company for the first shipment.
Standards referenced
EN 1492-1:2000+A1:2008 (flat woven webbing slings); EN 1492-2:2000+A1:2008 (roundslings); DIN 60005:2018-07 (single-use textile slings); EN 12195-2:2000 (web lashing); ISO 18264:2022 (HMPE fibre rope slings); AS 4497:2018 (Australian round slings). Always work from the current edition and the project specification; this guide is buyer education, not a design basis.
Further reading
- Direct Manufacturer vs Trader: HMPE Sling Supplier Due Diligence Checklist
- HMPE Sling Procurement Guide: 9 Things to Verify Before You Order
- EN 1492-1: Flat Webbing Slings Explained
- EN 1492-2: Round Slings Explained
- EN 12195: Lashing Straps and Cargo Securing Explained
- Lifting Solutions Range
Still deciding which product family or standard applies? Send the load, the hitch, the environment and the destination, and we will confirm the rating basis and the document set — request a quote and we will reply within 24 business hours (Mon–Sat).