Get to know us
About us
We are a professional manufacturer and exporter specializing in sauna rooms, cold plunge tubs and wellness products.
With our manufacturing base in Xuzhou and an international sales operation in Nanjing, we combine in-house production with a strong supply chain to provide reliable products for distributors, retailers, wellness businesses and project customers worldwide.
From product development and production to quality control and delivery, we focus on making every stage of cooperation simple, transparent and dependable.


Why Choose Us
You didn’t come this far to stop
① Direct Manufacturing
From Factory to Market
In-house manufacturing helps us maintain better control over product quality, customization and production schedules.
② OEM & ODM
Built Around Your Requirements
From materials and dimensions to functions, appearance and packaging, we support customized solutions for different markets.
③ Quality Control
Quality at Every Stage
We focus on material inspection, production control, assembly and final inspection to ensure consistent product quality.
④ Flexible MOQ
Flexible for Different Business Stages
Whether you are testing a new product or preparing for larger orders, we offer flexible cooperation solutions.
⑤ Global Experience
Designed for International Markets
Our products are supplied to customers across different markets, with experience in international communication, packaging and shipping.
⑥ Responsive Service
Fast Communication. Practical Solutions.
From quotation to production and shipment, our team stays closely involved throughout the process.
Our Manufacturing Capability
Our manufacturing facility brings together production, assembly, quality control and product development under one roof.
With dedicated production areas and an experienced manufacturing team, we are able to manage different product requirements while maintaining consistent quality and production efficiency.
From raw materials to finished products, every step is carefully managed to meet the expectations of international customers.


Nanjing Zenith Smart Innovation Tech Co., Ltd
Architectural-grade thermal wellness at factory-direct scale.
Sitemap
Home
Products
OEM & ODM
Projects
Certifications
Contact
Inquiries
cygsupply@gmail.com
WhatsApp: +86 15895873728
Headquarters & Factory: Jiang su, China
© 2026 Kala Thermal-Factory-direct scale. Certified international export.
OEM/ODM PRECISION
