We introduce ourself as an original manufacturer of ball bearing drawer slide. With an industrial park of 20000 square meters, more than 260 employees, we possess capacity of manufacturing 450000 sets of slides per month, our products export to more than30 countries such as USASpain, Italy, Germany, UK, Japan, Taiwan, Turkey, Iran, Syria, Czech, Slovakia, Mexico, Brasil and so on Our model DY4605F have passed through SGS test certificate (load capacity 45kgs cycled 50000 times) reference to US standard ANSI/BIF MA/BHMA/KCMA, and now we have been the UNITED NATIONS PROVIDER. For more details refer to our website:***** Should you be interested in any product?please contact me at anytime