Ultra hard materials can manufacture any a variety of dressing tools ,drilling tools, grinding tool and microchip you may be using now. We also design fabricate customerized machinery electric equipment to better fit your needs. we provide more consistent ...

Shenzhen Hengzhiyi Electronic Technology Co., Ltd suppliers high quality jewelry weighing and testing tools, provide a variety of product, like pocket scale, precision balance, diamond selector II, loupe, hardness pencil, polariscope, gauge etc for ...

NINGBO INDUSTRY CO.,LTD is a specialized manufacturer and exporter for jewelry making supplies in China, Within more than 20 years development researches, we are being the main supplier this field of China. Adhering to corporate spirit "development ...