Home › E-Liquids › Diamond 4

Air Bar Diamond 4 Sample Order Workflow Checklist 2026

Published 2026 · VapeWholesaleHub trade desk

A disciplined sample workflow shortens the path from first interest to a Diamond 4 purchase order.

A range review that ignores sample order workflow will often produce a confident decision and a disappointing quarter on the Diamond 4.

Consistency across batches matters more than peak performance for Diamond 4, and sample order workflow is where inconsistency first appears.

Why sample order workflow matters on the Diamond 4

Request samples with the final specification, not an approximation.

Consistency across batches matters more than peak performance for Diamond 4, and sample order workflow is where inconsistency first appears.

Evaluate across at least two weeks of real use.

Reference specification

Item	Value
Model	Diamond 4
Brand	Air Bar
Category	E-Liquids
Battery	650 mAh
Output range	10-40 W
Capacity	6.0 ml
Charging	USB-C 1A
Coil options	0.4 / 0.6 ohm
Carton quantity	120 units

Record findings so the next buyer does not repeat the work.

Practical notes for buyers

Where two suppliers look identical on price, sample order workflow is usually the variable that separates them over a full year.

Retail staff rarely ask about sample order workflow directly, but their questions almost always lead back to it.

Checklist

Request batch photographs and a packing list prior to shipment.
Review the reorder point after one full selling cycle.
Confirm the exact configuration in writing before the deposit is paid.
Record the arrival condition with photographs on the day of delivery.
Verify that artwork matches the approved compliance template.
Log sell through by account for the first eight weeks.

Commercial terms

Freight terms should be named explicitly, because an unclear incoterm is the fastest way to lose a relationship.

Payment history is the single most reliable route to better terms, more than total annual volume.

Volume tier	Indicative unit level	Lead time
Carton (136 units)	Tier 1	7-12 days
Pallet (1150 units)	Tier 2	7-12 days
Container (7263 units)	Tier 3	14-21 days

All figures above are indicative working ranges used for planning. Final specification and commercial terms are confirmed in writing before any deposit.

Frequently asked questions

How many Diamond 4 samples should we request?

Three to five units per shortlisted configuration is enough to judge consistency.

Can packaging be adjusted for our market?

Artwork localisation is straightforward; structural changes need larger volumes and a longer lead time.

Can several models be mixed in one shipment?

Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.

What happens if a batch fails inspection?

The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.

Final word

None of this is complicated, but it does need to be written down and reviewed on a schedule.

Trade enquiry

Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.

Tel: +86 13711127975WhatsApp: +86 13711127975WeChat: +86 13711127975