E&b

"E&B" mainly refers to two different entities in the e-cigarette industry: one is an oil manufacturer in the United States, and the other is a disposable e-cigarette product line closely associated with the well-known brand "ELF BAR".
 Vape oil manufacturer: E&B Flavor Inc.
This is a vape oil (e-liquid) manufacturer located in California, USA.
Company Background: The full name of the company is E&B Flavor Inc. It has been in operation since 2013. "E&B" is the abbreviation of its brand philosophy "Extract and Brew" (Cultivate and Brew).
Main business: Specialized in the production of high-quality e-cigarette oil, particularly renowned for its tobacco and coffee flavors. They also offer services such as OEM (Original Equipment Manufacturing).
Representative product: The product line includes the "75°C Series" e-liquid. For instance, the "75 Degree Hazelnut Latte" flavor is designed to replicate the most aromatic taste of coffee at 75°C.
Compliance: The company claims that all of its products have been registered and listed with the FDA (Food and Drug Administration) in the United States.
One-time electronic cigarette brand: EB Design
The word "E&B" is also frequently seen on one-time electronic cigarette products, especially on the EB Design brand.
Brand Relationship: EB Design is widely regarded as the new name or affiliated brand of the well-known e-cigarette brand ELF BAR. Its products are highly similar in design and flavor to ELF BAR.
Product features: EB Design mainly produces disposable electronic cigarettes with high puff count, such as:
TE6000: Offers approximately 6000 puffs, with a built-in 10.3ml e-liquid and a 650mAh rechargeable battery.
BC5000: It offers approximately 5000 puffs and is equipped with a 13ml e-liquid tank and a 650mAh rechargeable battery.
Rich in flavors: EB Design offers a variety of flavors such as fruits, mint, etc. On its official page, descriptions of some flavors directly mention "E&B Vape".
Summary
In brief:
If it refers to the bottled nicotine solution, then "E&B" is likely to refer to the American manufacturer E&B Flavor Inc.
If we are talking about a disposable electronic cigarette device, then "E&B" is more likely to refer to the EB Design product line, which is closely associated with the ELF BAR brand.