رمز المنتج : AL-WNi-NN-CU
يرجى التواصل معنا إذا كنتم بحاجة إلى خدمات مخصصة. سنتواصل معكم خلال ٢٤ ساعة لإعلامكم بالسعر والتوافر.
Tungsten was used extensively for the filaments of old-style incandescent light bulbs, but these have been phased out in many countries. This is because they are not very energy efficient; they produce much more heat than light.