Reviewing premade volume fan samples from more than one batch requires a controlled comparison process. To reach a reliable conclusion, compare like-for-like products first: the same material, diameter, curl, length layout, tray presentation, and fan volume should be used in every sample set. Once the specifications are aligned, inspection records and practical testing can reveal whether the batches meet the expected standard.
Batch comparisons are meaningful only when all key product variables remain unchanged. Before evaluating samples, create a reference specification that identifies the requested fiber, thickness, curl, length, tray format, and fan designation. This prevents normal differences between product options from being mistaken for quality defects.
Available premade fan materials include Korean PBT fiber, silk, and cashmere. Diameter options are 0.03mm, 0.05mm, and 0.07mm. Curl selections include J, B, C, CC, D, DD, L, L+, M, LC, and LU, while lengths are offered from 6mm to 18mm as well as in mixed-length configurations.
After confirming the basic specifications, inspect the physical configuration of each sample batch. The product is supplied as a 12-row narrow premade volume fan format. Verify that every tray follows the agreed row presentation and that the ordered fan type is correctly identified.
Premade volume choices include 6D, 8D, 10D, 12D, and 20D. Compare batches within the same fan designation so that differences in volume, structure, or presentation can be properly identified. Recording each batch by its full specification makes it easier to determine whether an inconsistency is related to the product itself or to an incorrect configuration.
A complete assessment should include more than a visual review. Quality consistency can be evaluated through incoming material inspection, functional testing, finished-product inspection, and final pre-shipment inspection. These stages help establish whether the selected samples conform to the agreed requirements throughout production and delivery.
When an issue is verified, record the affected batch number and the exact specification involved. Technical support, product quality support, and replacement for confirmed quality issues are available. OEM and ODM assistance may also be provided for customized product requirements.
| Review Item | Product Options | How to Compare Batches |
|---|---|---|
| Material | Korean PBT fiber, silk, or cashmere | Ensure all samples use the material selected in the reference specification. |
| Thickness | 0.03mm, 0.05mm, or 0.07mm | Check that each batch carries the same requested diameter. |
| Curl | J, B, C, CC, D, DD, L, L+, M, LC, or LU | Compare the curl designation on every sample tray. |
| Length Format | 6-18mm or mixed lengths | Confirm that the batch follows the chosen single-length or mixed-length arrangement. |
| Fan Format | 12 rows, narrow premade fans, 6D to 20D options | Review row layout and fan volume against the approved order details. |
| Quality Process | Incoming, functional, finished-product, and pre-shipment inspection | Use inspection documentation to track consistency and report verified deviations. |
These premade volume fan options are intended for professional lash salons, eyelash extension studios, independent lash technicians, mobile beauty providers, training academies, and beauty schools. Professionals can compare curl, length, and fan volume based on their service techniques and client needs.
Training organizations can also evaluate multiple lash styles alongside adhesives, tweezers, practice accessories, and UV/LED lash lamps for instructional and hands-on practice purposes. Selecting consistent sample specifications is especially important when a salon or academy expects to place repeat or bulk orders.
The company states that its eyelash extension products hold an FDA certification in the United States under certificate number 53-352156-140573. Its quality procedures cover incoming materials, production operations, finished goods, packaging, and final checks before shipment.
Sample orders have a minimum order quantity of one piece. Custom orders begin at 100 pieces. Standard delivery is stated as 7 days, while customized orders generally require 15-30 days. Guangzhou Ruiju E-Commerce Co., Ltd. offers OEM/ODM customization, private label service, wholesale supply, bulk ordering, and flexible small-batch purchasing. For technical guidance or quality support, contact sales@ubemay.com.
Keep the material, thickness, curl, length format, 12-row tray presentation, narrow fan structure, and fan volume designation the same. This allows you to assess genuine batch consistency rather than differences between separate product options.
The available quality-control framework includes incoming inspection, functional testing, finished-product inspection, and pre-shipment inspection. Together, these checks support a documented comparison of multiple sample batches.
Identify the relevant batch and record the exact difference, such as material, thickness, curl, length, or fan configuration. Submit the documented issue for technical and product quality support; replacement is available for verified quality issues.

Guangzhou Ruiju E-Commerce Co., Ltd., operating under the UBEMAY brand, serves the professional beauty market with eyelash extensions, lash adhesives, lash accessories, and UV/LED lash equipment. Founded in 2014, the company operates a 5,000 sqm factory area and supports customized product development, including drying time, retention, humidity range, colors, fragrances, labels, bottles, caps, and packaging.
Its product range includes eyelash extension glue, eyelash extensions, UV/LED lash glue, lash preparation products, aftercare products, and eyelash extension accessories. The company lists FDA Cosmetic Product Listing for UV Eyelash Extension Glue and CE certifications for LED Lash Glue Curing Lamps.

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