Choose the material by its class, not its name. Every product page carries the EN classification, consumption, open time and mixing ratio — those are what decide whether it suits your job.
Work out the quantity from the published consumption and your area. If you are unsure of the notch size or the thickness, ask before ordering rather than after.
Confirm, name the governorate and the site. Materials arrive within the window published for your governorate, and payment on delivery is available inside Syria.