PFA Tweezers Lab Grade for Wafer Jewelry Watch Repair Chemical ResistantHigh Temperature Stability for Lab Heating ProcessesFeature: PFA soluble polytetrafluoroethylene material, usable up to 500F with a melting point around 580F. Advantage: Maintains reliable mechanical performance above 302F, outperforming FEP in high heat environments. Benefit: Safely handles substrates and silicon wafers during lab heating experiments without deformation, ideal for research lab thermal testing workflows. Excellent Chemical Resistance

This set of 5 Bergeon Swiss made

China made SA3130 Movement blue balance spring 1:1 Watchmaker Brand New

9 o'clock position small second dialing

Brand new waterproof watch crown set

Length: 220mm

Minute hand length 14

5pcs for each size

SUPERIOR QUALITY AND CRAFTSMANSHIP: Made with premium quality genuine leather

l Case Material: 316L Steel

Size : Ø 60 mm

Hand Sizes: 100/152/17

for general watchmaking