LongDe Yizhi
Bath Books & Kids Products
Waterproof soft books and custom EVA/PVC children's products.
Custom bath books and ring binders, RF welded in Dongguan.
Custom manufacturing for children's and stationery brands. Start with a drawing, sample or product idea.
- Materials
- EVA, PVC, TPU
- Core process
- High-frequency (RF) welding
- Service
- OEM / Custom Development
- Location
- Liaobu, Dongguan, China
Clear Project Expectations for Our Flagship OEM Products
Clear expectations help your team plan a project before requesting a formal quotation.
20years
Product development and manufacturing experience at Longde Plastic
3,000pcs
Bath book MOQ
10days
Sampling lead time
Bath books: 10 days · Ring binders: 3 days
45days
Typical production delivery
Approx. 45 days after sample approval
Bath book MOQ and project timing are confirmed against the final specification, artwork, testing, packaging and delivery requirements.
Product Categories
Our focus is bath books and custom ring binders, with other soft-plastic products reviewed project by project.
Office & Stationery Products
Document bags, folders, binders and custom office products.
Custom RF Welded Products
Bring us your drawing, sample or concept. We help turn it into production.
From film roll to loaded container, in seven steps.
Whether you have a drawing, an existing sample or simply a product concept, we support material selection, prototyping, printing, cutting, RF welding, assembly and final packaging.
Swipe sideways to follow the line.
01Material Selection
EVA, PVC or TPU film is chosen against your specification. Tooling is kept racked and labelled.
02Printing
Your artwork is printed on the press line before any cutting starts.
03Cutting
Film comes off the roll and is cut to size for each part.
04RF Welding
High-frequency welding fuses the layers along the die line into a sealed seam.
05Assembly
Rings, closures and inserts are fitted by hand.
06Inspection
Goods are checked against the reference sample you approved before production.
07Packaging
Cartons are packed to your packaging requirements and loaded for export.
Quality Starts with an Agreed Product Specification
We align product requirements and sample approval before production. Inspection and any third-party testing are discussed for each project and target market.
Specification review
Confirm material, construction, artwork, dimensions and packaging requirements with your team.
Sample approval
Review the agreed reference sample and key details before moving to production.
Inspection & testing coordination
Discuss project inspection points and arrange applicable third-party tests when required.
amfori BSCI social auditSocial compliance audit information is available for qualified buyer review on request.Third-party testingArranged per project and target market
EVA / PVC / TPUCustom Manufacturing
RF Welding ManufacturingRF Welding · Assembly
OEM / ODMOEM / Custom Development
A New Business Built on Nearly 20 Years of Manufacturing Experience
LongDe Yizhi is a new company established by Dongguan Longde Plastic Products to develop new business. It builds on Longde Plastic’s nearly 20 years of product development and manufacturing experience, with a focus on new products and markets.
Our current focus is bath books and custom ring binders, with product and manufacturing solutions developed around each customer’s requirements.
Have a Product in Mind?
Send us your drawing, sample or product idea. Let's discuss how to manufacture it.
- sales@longdeyizhi.com
- Working Hours
- Mon – Sat, 8:30 – 18:00 (UTC+8)
- Address
- Room 301, Building 2, No. 56 Jinshi Road, Liaobu Town, Dongguan, Guangdong, China