Based on my research, here's what I can tell you about the WELKO S780 E office safe, keeping in mind your interest in a "gold-black" color:
Model: WELKO S780 E. The "E" indicates it has an electronic lock.
External Dimensions: Approximately Height 780 * Width 530 * Depth 570 (mm).
Weight: Around 150 ± 10 kg.
Fire Resistance: Typically 1000 - 1200°C.
Lock System: Features an electronic lock, and often includes a key lock for added security.
Color: While standard colors for WELKO safes are often black, brown, and white, there is a listing on Alibaba.com specifically mentioning "Office Safes WELKO S780 E Gold Black".
To find this specific color combination, I recommend the following:
Check the Alibaba listing: The Alibaba.com listing specifically mentions "Gold Black" for the WELKO S780 E. You can try contacting the seller through this platform for more details and purchasing options. Here's a direct link: https://chinese.alibaba.com/product-detail/Office-Safes-WELKO-S780-E-Gold-10000011818387.html (Note that the page is in Chinese, you might need a translation tool).
Contact WELKO distributors in Hanoi, Vietnam: Search online for "WELKO safe distributors Hanoi Vietnam" to find local suppliers. They might have information on available color options or be able to order a specific color for you. You can try contacting:
Vietnam Treasury Vault Security And Equipment Supplies Joint Stock Company: You can find their contact information on Yellow Pages Vietnam.
An Thinh Phat Safes: They are listed as a trusted safe store in Hanoi and carry WELKO safes. You can try searching for their contact details online.
Két Sắt Việt Tiệp: While primarily known for Việt Tiệp safes, they also list WELKO safes and might be able to assist. Their website is https://ketviettiep.com.vn/.
WELKO's Alibaba page: You can also try contacting WELKO directly through their Alibaba page: https://welkosafes.trustpass.alibaba.com/
Reach out to WELKO directly: If you can find the official WELKO website or contact information (VIETNAM BANK MATERIAL EQUIPMENT AND VAULT SAFE JSC is the manufacturer), inquire about the availability of the S780 E in the gold-black color option.
It's important to note that the "gold-black" description might refer to specific design elements or accents rather than the entire safe being two-toned. Always try to get images or detailed descriptions from the seller to ensure it meets your expectations.