WELSUM TECHNOLOGY CORPORATION established in 1981 is specialized in specialty chemical, textile chemical, surface coating, and resin material etc. We are dedicated to innovation, progress, eco-friendly, and service over 30 years. Our management system is audited and approved by ISO 9002 in 2000 and ISO 9001:2000 in 2003. We fulfill systematic management based on ISO regulation in product R&D and production, and marketing. To implement our compliance to environment and public obligation, we are ...