[Hong Kong storage concept stocks continue to decline in the afternoon, Southern Double Long Hynix drops over 28%] DeepTech TechFlow reports, on July 28, Hong Kong storage concept stocks continued to decline in the afternoon. Southern Double Long Hynix (07709.HK) dropped over 28%, Southern Double Long Samsung Electronics (07747.HK) dropped over 25%, GigaDevice Semiconductor (03986.HK) dropped over 17%, Montage Technology (06809.HK) dropped over 12%, and VSTECS Holdings (00856.HK) dropped over 7%. (Jin10)