2. water hyacinth) through RID Li on nalaeo comes on for each pattern, frozen concentrated sodium hydroxide = 4, 6, 8 and 10 in the ratio by weight of a substance per pattern crochet per sodium hydroxide equals 1.5, 1:10 1:15 and 1:20 at 30, 50, 70 and 90 degrees Celsius for a period of 30, 45, 60, 75 and 90 minutes.
การแปล กรุณารอสักครู่..