Weifang Dudeli Chemical Industry Co., Ltd

Xi'an Jiatian Biotechnology Co., Ltd. is a modern high-tech enterprise specializing in the extraction of natural plant active ingredients and the processing of pharmaceutical intermediates. The company has its own R&D team and professional technical

SED was founded in 1984 and is engaged in the development, manufacture and distribution of sophisticated valve technology and flow meters. The aseptic diaphragm valve and all the corresponding components is the main focus of SED. With more than 20 ye