Tong Yah Industrial Co., Ltd.
has been manufacturing parts and accessories for motorcycles,
scooters and automobiles for 23 years. Contiual reasearch and development,
manufacturing and marketing of various special tune-up, dress-up
and accessories has established its strong professional brand,
Koso.The company's quality managment system
meets the International Quality System Standard ISO 9002. Koso
products are thoroughly tested with state of the art testing
equipment.
