whatsapp:+86 13805212761 http://www.mit-ivy.com ʻO ka hui ʻoihana mit-ivy DSD acid (4,4 diaminostilbene mono-2,2 bisulfonic acid) he mea koʻikoʻi ka wai kala, i hoʻohana nui ʻia e hana i nā kukui fluorescent, pololei. melemele paʻa G, melemele pololei R, ʻalani pale ʻole o ka lā F3G a me ka ant...
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