About Us | Factory, Quality Control & One-Stop Service
EN ISO 20471 / ANSI 107 Hi-Vis OptionsCE / RoHS / FCC CompliantShenzhen, China
info@sylvzen.com · WhatsApp +86 152 7923 9336
About Sylvzen

Shenzhen Heshichuang Technology Co., Ltd.

A real manufacturer of outdoor safety and sports protection products — six product lines, in-house QC, and a one-stop OEM service trusted by brands across 30+ countries.

6Core Product Lines
100+Active SKUs
30+Export Countries
12hAverage Response
Production workshop
Our Story

From Shenzhen Workshop To Global Supplier

Sylvzen is the registered brand of Shenzhen Heshichuang Technology Co., Ltd., based in Bao’an District, Shenzhen — the heart of China’s electronics and hardware supply chain.

We started with reflective safety wear, then added lighting, braces, riding protection, garden covers and fitness gear — each line launched only after we could control its quality in-house. Today our export team serves wholesalers, Amazon sellers, brand owners and retail chains across North America, Europe and Southeast Asia.

Our promise is simple: factory pricing, transparent production, and a QC report for every order.

Inside The Factory

Four Departments, Full Process Control

Production workshop
Production WorkshopWebbing, cutting, sewing and electronics assembly lines with in-line inspection points
QC laboratory
QC LaboratoryIQC on incoming materials, functional testing, drop tests and final AQL 2.5 inspection
Warehouse and logistics
Warehouse & LogisticsOrganized SKU storage, container loading supervision and Amazon FBA prep
Sample showroom
Sample Showroom100+ SKUs on display — book a live video tour and see everything in one call
Quality System

Five Inspection Gates Before Your Order Ships

  • Gate 1 — IQC: incoming fabrics, webbing, LEDs, batteries and silicone inspected against approved specs
  • Gate 2 — First article: first piece of every production run signed off before the line runs
  • Gate 3 — In-line check: hourly sampling on the line; defects corrected at the source
  • Gate 4 — Final inspection: AQL 2.5 sampling with photo report sent to you before packing
  • Gate 5 — Loading check: carton counts and container condition verified at loading

Third-party inspections (SGS, BV, TÜV) are welcome — we will coordinate access and samples.

QC laboratory testing
One-Stop Service

More Than Manufacturing

Everything around the product, handled by one team.

Design & Development

Product engineering, Pantone matching, packaging design and manual translation.

Compliance Support

CE / RoHS / FCC / EN ISO 20471 documentation, MSDS & UN38.3 for batteries.

Shipping & FBA

FOB / CIF / DDP terms, consolidated containers, FNSKU labeling and FBA carton standards.

See Our One-Stop OEM Service

Verify Us

Book A Live Factory Video Tour

See the lines, the showroom and the QC lab in a 20-minute video call — no filters, no stock photos. Or visit us in Bao’an, Shenzhen.

💬 WhatsApp: +86 152 7923 9336

📧 info@sylvzen.com

Sent directly to info@sylvzen.com — answered within 12 hours.
滚动至顶部