Yantai Zhenghai Bio-Tech 

Yantai Zhenghai Biotechnology Co., Ltd., founded in 2003 and based in Yantai, China, specializes in the innovation, manufacturing, and commercialization of regenerative medical materials across China. The company's product offerings include a bone repair material, which is a partially deproteinized substance derived from calf cancellous bone after undergoing a series of processes like decellularization and degreasing. It also provides membranes for oral cavity repair, specifically designed to address shallow soft tissue defects in the mouth. Under the "Heal-All" brand, it supplies biomembranes used in neurosurgical procedures to mend defects of the cerebral dura mater. Additionally, the "Heal-Full" brand encompasses skin repair membranes developed for treating wounds within the dermal layer.