No.11 Zhengshang Road

Zhengzhou Protech Technology Co., Ltd-owned by Protech(China) Holding Litmited, is founded by a group of technology enthusiastic people who are devoted to probing the newest technology and innovation ...

Nanjing Binzhenghong Instruments Co., Ltd. is located in the cultural center of Nanjing. Since the 1980s, we have been specializing in the design, mold making, production, and processing of PFA/FEP/PT...

anthracite and graphite...