Hangzhou Sifang Electronic Scales Co.,Ltd is one of companies with great capability developing new products. We have been improving performances our products for function due to market demand. Many terms advanced technology are on the top in China. Under perfect management, good quality ...

Hopu Optoelectronics is a government recognized hi-tech enterprise registered firm. We are specialized in researching, developing and manufacturing instruments for measuring colorimetry, photometry spectroradiometry. have one batch of high quality software hardware talented ...