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Raney Nickel Mesh Electrode is gas diffusion electrode (GDE) where the catalytic layer is made from Raney nickel, and it is supported on or integrated into a metallic mesh (often nickel mesh). like raney nickel coated nickel woven wire mesh, raney nickel coated nickel expanded metal mesh. 

Zirconium (Zr) Mesh is popular for providing supreme corrosion resistance properties. It looks like silver metal and has very high melting point. It is a best choice for use in nuclear plants.

Niobium (Nb) Mesh with more than  99% Nb, has good corrosion & heat resistance,  20-180 mesh size for your reference. 

Pure molybdenum wire (99.95%) has  bright or  black color with graphite coating types. 1-200 mesh size to be used as heating elements  

Tungsten Mesh has 99.9% W, with high melting point 3400 degree, 1-300 mesh size for heat resistant environment. 

99.9% Pure Ti Mesh Titanium woven mesh made from Ta1 Ta2 GR3 GR4, mesh size 1-200, Bright titanium mesh for battery electrode, Black titanium for filtering industry. 

Tantalum (Ta) Mesh usual used as screen or gauze for catalyst,  with melting point 3017°C, and boiling point to 5458°C.

Ni200 Ni201 N2 N4 N6 N8 grade Nickel mesh produced by Aegis company, size from 1-400, ultra fine, used as filter or Hydrogen industry. 

99.99% Ag sterling silver mesh, usual as the battery material, stock mesh size 60# 80# 100# 230# 180#, other sizes can be made.

Pt mesh gauze,  99.9% purity, usual used as a catalyst, It is corrosion resistant and stable at high temperatures.