Siwei Development Co., Ltd - L-Lysine Amino Acid

About Us

we make L-Cystine
L-Leucine
L-Valine
L-Arginine
L-Cysteine HCL
L-Phenylalanine
interested clients, kind please feel free contact with us.

New Products

We are in the market of L-Lysine, and L-Lysine HCL, L-Valine, L-Cysteine ...

We are making Trompicamide-pharmaceutical raw material, if you are interested, ...

we are manufacturing pharmaceutical raw material-Acyclovir, if you are ...

we are manufacturing amino acid like L-Lecuine, L-valine, L-phenylalanine, ...

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