Since 1998 in Taichung, Taiwan, KING DA JENG CO., LTD. is a professional manufacturer of valves and fittings. Our company specialized in manufacture all kinds of acid-resistant and alkali-resistant valves, pipe fittings and connections in plastic. All of our products are suitable for acid-resistant and alkali-resistant industrial system, pure water system, drainage & water supply system of general use (fishery irrigation, agricultural irrigation and air conditioning system etc.). We founded KDJ brand and marketing all around the world. And we provide the services of new product development and OEM order as well.

We keep working on innovation and progress, and make the serious attitude of good quality control, efficient service and creative design as our utmost goal. Via consistent production process and professional management, we provide the highest quality products and services to our customers.

For making our products quality better and better, KDJ was awarded ISO 9001:2015 certification in 2017, goal to provide the best service to our customers all around the world.

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Mission Statement

We learn and gain knowledge actively of the state-of-the-art technology of valves. Utilize brand new ideas to serve customers a more professional service.
We are devoted to creating long-term advantageous collaboration relationship with our customers.
We deliver the best solutions to meet the customers’ needs, and always put customers first.
We use 100% enthusiasm of services, communicate with honest, and do our best to satisfy every one of our customer.

Our Values

Highest Quality
"Highest Quality & Best Service" is our company’s top priority. We adopt a strict quality control in our production system. To ensure all of our products are qualified, we do 100% leakage testing until non-malfunction before deliver to customers. Everything we do is to provide our customers a high quality production and to create more advantageous collaboration via our insistence of the productions’ quality.
Via consistence production process and professional management, we deliver fast and answer customers’ needs promptly.
Competitive Price
We provide a competitive price to get an advantageous collaboration.
We keep the faith of trustworthiness and sustainable operation, and we achieve every promise we gave.