Our factory
From the first pattern to the final carton.
Dongguan Haihe Technology Co., Ltd. — custom bag development and manufacturing in Dongguan, China.
FROM A MODEL TO A PURCHASING BRIEF
Three model specification examples
Use these photographed product references to see which construction and purchasing details belong in a sample brief. Listed figures come from supplied model information and must be confirmed on your approved sample. These examples do not present customer production orders or test results.

- Supplier reference: 28L TPU body, model BW3006.
- Listed finished dimensions: 32.5 × 18 × 48 cm.
- Visible layout: front gear straps, internal mesh organisation and a padded carrying system.
Quote the actual accessory envelope and packed load. Review strap reach, buckle access and the complete carrying fit on the selected sample; a visible loop does not establish a rod size or load limit.
Include the accessory dimensions, target load, artwork position and colour quantities in the backpack RFQ.
Compare this product family · Packed-sample carrying review

- Supplier reference: 25L insulated tote.
- Material detail: 600D TPU outer, 420D TPU liner and a listed 1-inch foam layer.
- Listed shipping package: 50 × 38 × 42 cm; this is not the finished bag size.
Keep the shell, liner and insulation as separate quotation lines. A 25L capacity or foam thickness does not establish an ice-retention duration; define the contents, cooling medium, ambient conditions and opening schedule before comparing samples.
Ask for the selected material construction, packed-load reference and final unit/carton packing specification.
Compare this product family · Cooler comparison conditions

- Supplied layout: raised perimeter, twin hanging points and an inflation fitting with pump.
- Material reference: PVC; a TPU option can be quoted separately.
- Reference unit weight: 120 g; exact device fit and dimensions require sample confirmation.
Separate the phone envelope, correct closing sequence, pump interface and retail-pack contents. Raised edges and inflation components do not establish a flotation result or immersion rating for a loaded device.
Send the phone and case dimensions, camera clearance, artwork, lanyard and complete accessory/packaging list.
Compare this product family · Closure and lanyard checks
Connect the brief to the approved sample
Identify the model, specification revision, material selection, artwork and complete packing set. Record the approved changes against that same revision so a later quotation or reorder can be compared line by line. If you need a model-specific test or certification document, tell us the product and requirement for review.
Existing-model logo orders start at 50 pieces; new OEM development starts at 100 pieces. OEM sampling normally takes 10–15 days, with typical fees of US$15–500 depending on style and materials. Regular bulk production takes 10–15 days; confirm the actual schedule and delivery terms in your quotation.
Build a sample approval record · Review OEM and ODM development · Prepare your quotation brief