TTD(Former name CIU) conducts business that makes work easier.  Our company creates intelligent connected machines designed to streamline the work that sustains our lives.

TTD(Former name CIU) places our customers desires and needs at the center of everything we create.

Relying on over 30+ years of hands-on experience, terabytes of precision data, and an international team of designers, innovators, and engineers; TTD(Former name CIU)  produces precisely engineered equipment designed to meet our customer’s needs.  Our easy-to-use technology helps deliver exceptional results seen in the field, on the job site, and on the balance sheet.

TTD(Former name CIU) ’s 45,000’ facility, located in the Changzhou, Jiangsu Province of China, is capable of producing tens of thousands of machines every year.  Our tried and tested supply chain capacity insures that orders are filled and delivered on time.  We provide complete logistics via land, sea, and air to fulfill each and every order efficiently.


more than 30 years of experience in manufacturing agricultural machinery and outdoor power equipment


TTD has more than 150 employees




23 national patents and complete ISO 9000,9001 quality management system certification

Corporate culture

Corporate Vision

Integrate wisdom into technology, bring technology into production, strive to build a benchmark brand in the industry, create products that can withstand international competition for customers, and experience the happiness of benefiting the world.

Our Mission

To provide everyone, including our customers, employees, suppliers and other business partners, the opportunity to create and fulfill their dreams.


Keep promises, pay attention to contracts, do right, do well, and satisfy customers. With heart, with wisdom, improve and innovate.

Company Culture

Quality is the foundation of our survival; Innovation is the foundation of our development;Working with heart, honest cooperation is our business philosophy; Customer first is our eternal pursuit; Integrity、Dedication、 Innovation, Stability are our working attitudes.

Development history

  • 2023

    Company name was changed from Changzhou Inter-Universal Machinery & Equipment Co., Ltd. to Tool Tuff Direct Co., Ltd.

  • 2022

    TTD acquires Tool Tuff, LLC in the United States

  • 2019

    In 2019, a new brand: POWERKNX was established, and the Precision Sfx, LLC in the USA.

  • 2018

    TTD improved and expanded their product lines, and successfully entered new markets such as pneumatic hydraulics.

  • 2011

    In 2011, the registered capital of TTD was expanded form 16.688 yuan to 51.8 million yuan.

  • 2005

    TTD relocated its factory to the industrial concentration area of Zhaiqiao Village, Qianhuang Town, Wujin District, Changzhou City.

  • 2003

    Company name was changed from Changzhou Inter-Universal Machinery & Equipment Factory to Changzhou Inter-Universal Machinery & Equipment Co., Ltd.

  • 1989

    Inter-Universal Machinery & Equipment Factory was established.


    corporate honor

    From 2012 to 2016, the company has won the honors of "District high growth small and medium-sized industrial enterprise", twice "credit rating 3A", three times "Association vice president unit", "the most learning enterprise", "labor security integrity enterprise" and "Engineering Technology Research Center" for five consecutive years


    CIU holds 23 national patents and complete ISO 9000, 9001 quality management system certification.  We strive to be state-of-the-art.


    Plant environment