Minimum order quantity, samples and payment terms are the three things a Chinese factory is happiest discussing after you have revealed your volume. Yet they are exactly what decides whether a first order is a tuition fee or a disaster. Below are typical ranges for pipe and fittings, a sane sampling policy, and payment structures that keep your leverage until the moment of loading.
What a "minimum" really is
MOQ is not a sales rep's mood; it is production logistics: line changeover, die and sizing-set change, purging the screw after a coloured compound, and buying aluminium foil or brass "by the melt". That is why the number is nearly always a shift's output, not a carton.
- PEX-AL-PEX (metallo-plastic) pipe: typically 1,000–3,000 m per size; mixing 2–3 sizes to reach about 5,000 m already earns a "normal" FOB price.
- PE-RT / PE-Xa underfloor-heating pipe: 3,000–5,000 m per size; one 20-ft container holds roughly 30,000–40,000 m of 16×2.0.
- PP-R pipe: 3,000–5,000 m per diameter and PN class; PP-R fittings follow mould cavities — 5,000–10,000 pcs per size.
- Brass fittings and press sleeves: 2,000–5,000 pcs per item; own tooling (OEM) usually needs 5,000–20,000 pcs and USD 300–900 per mould.
- Custom coil length (300 / 500 m), custom colour, two-colour printing: needs a dedicated run, so the practical minimum roughly doubles.
MOQ is negotiated by deal structure, not persuasion: a trial order at 30–50% of MOQ priced at the next volume tier, with a written commitment to complete the balance within 90–120 days; or a consolidated order across several SKUs so the constrained item rides along.
Samples: who pays what
Healthy practice: 1–5 m of pipe plus 2–5 fittings free of charge, buyer pays the courier (USD 30–60 per parcel to Kazakhstan, Uzbekistan or Kyrgyzstan), and the freight is credited against the first invoice. A full 100 m coil sample is nearly always paid. Insist on three details: the sample comes from a production batch, not a showroom; it carries the real marking of your specification; the label states extrusion date and batch number. Otherwise your test results say nothing about the goods you will receive. Confirm in writing that the approved production sample becomes the acceptance reference: a "wrong pipe" dispute then turns into a comparison against a specific offcut stamped with extrusion date and batch number, not a matter of opinion.
Payment structures
+ samples and inspection already paid
+ freight, if prepaid under your Incoterm
Target: keep this figure inside "a loss the business can survive".
| Payment method | Buyer risk | When to use |
|---|---|---|
| 100% advance by T/T | Highest: no leverage on quality or timing at all | Only small tooling fees, mould deposits, courier for samples |
| T/T 30 / 70 (deposit / balance against B/L copy) | Medium: balance helps, but a B/L copy is not the goods | Working standard for the 2nd and 3rd order with a verified plant |
| T/T 30 / 70 with balance after inspection | Lower: leverage retained until goods leave the factory | First order, new SKU, concealed installations in screed |
| Irrevocable L/C at sight | Low on performance, but costly and documents are unforgiving | Contracts from ~USD 50,000, currency-controlled countries, large repeat volumes |
| Escrow / platform Trade Assurance | Low: funds held by a third party, dispute handled by the platform | The very first payment to a new supplier, trial and small lots |
| D/P against documents, open account 30–60 days | Lowest for buyer, but the plant needs export credit insurance | Mature relationships after 2–3 seasons together |
The inspection-before-balance clause
The wording that works: 30% deposit; the remaining 70% payable within 7 banking days after an inspection report signed to AQL 2.5 and against a copy of the bill of lading; if any measured parameter deviates by more than X%, the plant re-produces the batch or grants a discount, and bears the cost of re-inspection. "We always make good quality" has no force — only a contract clause plus a defined measurement method does.
Tooling, OEM and the Incoterms interplay
Your own pipe marking (Russian or Kazakh), colour or two-colour logo: free above roughly 3,000 m, otherwise USD 30–80 for the print roll and 1–3 extra days. Brass moulds, non-standard fitting geometry, a private PP-R mould: USD 300–2,000 with MOQ 5,000–20,000 pcs — and pay for the tooling with ownership documented, otherwise next year your geometry appears in a competitor's catalogue. The Incoterm adds another layer: FOB Ningbo / Shanghai leaves the main carriage to you (sea via Aktau / Kuryk or the Central Asia rail corridor, roughly 25–45 days), CIF hands freight to the plant, DDP Almaty / Tashkent removes customs work but adds about 5–12% and removes transparency. EXW makes sense only for groupage to your consolidator.
MOQs, lead times, tooling fees, freight rates and typical deposit shares are volatile: they move with season, resin and aluminium prices, the yuan and border throughput. Use these ranges as a negotiating frame and request written confirmation of current figures before signing.