JZis a manufacturer of all standard DIN, BS,JIS and ISO fasteners and other industrial parts with well-equipped testing facilities and strong technical force.
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PapainIntroductionPapain is a natural enzyme, a kind of endopeptidase enzyme containing hydrosulfide group (-SH), and its molecular weight is 21000, it is composed ...
DKY hundred years specializing in the production of bulk drug manufacturers, the company is committed to chemical raw materials intermediates, biomedical technology as the core of...