About Stainsless Steel Bottles
Q1: What materials are used in your vacuum bottles? Are they corrosion-resistant?
A:
Our stainless steel bottles are engineered with strategic material combinations to balance cost and performance:
✅Standard Solution (Most Cost-Effective):
- Inner Layer: 304 stainless steel (food-grade, rust-resistant)
- Outer Layer: 201 stainless steel (durable exterior)
✅Premium Upgrade:
- Inner Layer: 316 surgical-grade steel (5x more corrosion-resistant than 304)
- Outer Layer: 304 stainless steel
Ideal for: Medical/Pharma industries, high-humidity regions
Why This Matters?
- The 304 inner layer undergoes 10,000+ electropolishing cycles (surface roughness ≤0.1μm), eliminating bacterial residue.
- 316 material passes 168-hour salt spray tests (5% NaCl, ASTM B117) with zero corrosion.
Q2: Why is there such a big price difference between vacuum bottles?
Pricing reflects precision manufacturing steps that directly impact quality:
Critical Process Controls:
1️，Vacuum Integrity:
- Single leak test → Vacuum rate≥95%
- Double leak tests → Vacuum rate ≥99%
Cost Impact: +15% for double testing
2️，Electropolishing:
- Standard grade: Surface roughness Ra ≤0.4μm
- Medical grade: Ra ≤0.1μm (86% lower bacterial adhesion risk)
3️，Seamless Welding:
- Manual welding → 92% pass rate
- Laser welding → 99.8% pass rate (+20% cost)
Our Promise:
"We never compromise on core safety processes but optimize auxiliary steps to deliver the best quality at your target price point."
Q3: What's your MOQ?
The Minimum Order Quantity (MOQ) depends on your specific requirements:
- Customization (design/color/material changes): MOQ 3,000pcs
- Ready-made stock items:1 carton (20-100pcs per carton, as specified under each product).
Q4: What is your sample policy?
A. For New Clients
✓ Free samples up to USD 5 (2-5 items depending on product)
✓ only pay for shipping cost
✓ Fast-tracked: Shipped within 24hrs after payment
B. For Repeat Clients
✓ Earn 0.1% free sample credit from your accumulated order value
Example: USD 10,000 orders = USD 10 sample credit
✓ Flexible usage:
▷ Redeem samples ▷ Offset shipping fees ▷ Combine with new orders