Shenzhen NICKVI majors in cannabis oil vape cartridge production for 5 years, with a 15000 square feet factory. We focus on supplying branded customers, hemp oil labs, extractors, with grateful quality and services. We pride ourselves on the following: The lowest documented failure rate of cartridge in the industry (less than 0.3%). Ability to offer savings between 10% to 30% from your current pricing. Superior customer service, all office staff speaks English. On-time delivery. Heavy metal free components. On staff engineering department. Custom orders are never a problem. We handle everything including shipping, customs, tariff payments. Many US-based customers are happy to provide a reference.