the description: 100% brand new and high quality Iron Laboratory Chemistry And Physical Experiment Beaker Tube Clamp Head Ring Holder For Teaching Tool Lab Equipment Used for school teaching display, laboratory experiment sets Material: metal Color: As the pictures show Size Chart: Assembled size (L x W x H): about 21 x 13.5 x 40 cm/8.27 x 5.31 x 15.75 inches Package includes: 1 lab experiment holder note: Due to manual measurement, please leave 1-5mm size differences
المقررات المفتوحة الكيمياء العامة " عملي " الكشف عن الشقوق الحامضية - 1 مجموعة حمض الهيدروكلوريك المخفف
