Stainless Steel Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
  • Gululu Milk Vacuum Flask
Stainless Steel Vacuum Flask

Gululu Milk Vacuum Flask

The Gululu milk vacuum flask features a 316L antibacterial stainless steel interior, which has been tested and shown to have a 99.9% antibacterial rate against E. coli and Staphylococcus aureus. It is resistant to acid and alkaline corrosion and does not easily retain tea stains, making it safe for all types of hot and cold beverages.

The flask body uses a 6-layer temperature-locking structure (including a 316L inner layer, a copper plating isolation layer, a high vacuum insulation layer, a 304 stainless steel outer layer, and a dirt-resistant, skin-friendly finish) to achieve long-lasting heat retention and cooling. It can maintain temperatures above 65°C for up to 6 hours and keep beverages below 8°C.

It features a removable 316L stainless steel tea strainer, making it easy to brew flower and fruit teas while effectively filtering out tea leaves. With a 360-degree leak-proof design and an upgraded scratch-resistant paint surface, it offers a delicate feel that does not attract fingerprints, so you don't have to worry about leaks even when turned upside down or placed in a bag.


Capacity

530ML

Material

304 Stainless Steel (Outer), 316L Stainless Steel (Inner), PP Polypropylene, Silicone Rubber

Cup Size

73mm*209.5mm (Caliber 36mm)

Package Size

76mm*76mm*218mm

 

About Us
Heenoor Co., Ltd.

Heenoor Co., Ltd. was founded in 1999 and has grown into a large-scale drinkware manufacturer with a long-term focus on product development and industrial manufacturing. Over the past two decades, we've built our engineering, production, and quality capabilities to support reliable, large-volume drinkware programs.

As an integrated manufacturing enterprise, Heenoor combines product design, engineering validation, tooling development, and standardized production under one operational framework. This integrated approach allows us to maintain consistency, control risk, and ensure stable delivery across different product categories and market requirements.

Our experience spans a wide range of drinkware materials and structures, serving diverse application scenarios from daily use to professional and premium segments.

Rather than pursuing short-term trends, we focus on building manufacturable, durable, and scalable products that can perform reliably throughout their lifecycle.

Today, Heenoor works with brands, organizations, and procurement teams that value technical clarity, manufacturing discipline and long-term supply stability.
We position ourselves not simply as a supplier, but as a manufacturing partner committed to responsible execution and continuous improvement.

Certificate Of Honor
  • Vice President Unit of the 5th session
  • High-Tech Enterprise
  • National Intellectual Property Advantageous Enterprise
  • Demonstration Unit for Consumer Confidence in Jiangsu Province
  • Jiangsu Province Biophilic Metal Nanocoating Engineering Technology Research Center
  • Civilized Unit of Jiangsu Province
  • Jiangsu Province May 1st Labor Medal
  • National Model Workers' Home
  • National Advanced Enterprise Trade Union of
  • National Civilized Unit
  • Main Drafting Unit of the Light Industry Standard for Double-Layer Glass Cups
News
  • On July 28, 2025, Heenoor Company held a grand creative painting event called "I have a painting appointment with Heenoor Little Bear" in the auditorium. The atmosphere at the event was lively, and co...

    READ MORE