ผลิตภัณฑ์โลหะ
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS H 4463 : 2002
Thoriated tungsten wires and rods for lighting and electronic equipment
2002
5
Std. JISn 2021
This Japanese Industrial Standard specifies thoriated tungsten (tungsten including thorium oxide) wire and thoriated tungsten rod, for lighting and electronic equipment. However, this Standard shall apply to wires and rods having a circular cross-section only.