WelldoTech was established in 2020, located in Ningbo,Zhejiang. We are the professional manufacturer and exporter specialized in waterproof marking chalks/crayons,chalk holders,and customized parts.

Company has a mature product line to meet the needs of different customers,such as production, packaging, printing, and even the development of molds to develop new products. Our skilled workers which enable us to produce high quality chalks and holders in substantial quantities. 

Company is running with the specialized supply-chain management, the advanced imported equipment and technological process, the high quality supervision system and the prompt sample development.

We believe that any product requires concentration and in-depth research to obtain the highest quality.