1. material: inside alnico magnet, outside teflon
2. max working temperature: 350 degree centigrade
3. used in lab
4. quick delivery, good service, priority quality and best price
Our size: dia5*10mm; dia5*15mm; dia6*20mm; dia7*25mm; dia7*28mm; dia8*30mm; dia8*35mm; dia9*40mm; dia12*60mm; dia13*70mm; dia14*80mm; dia15*90mm; dia16*100mm