Heating block, used for 50ml tubes, 2 holes

Customized block for NDK200-2N with 12 holes or NDK200-1N with 6 holes, , 6 x 24.9mm, 48mm deep

Nitrogen sample concentrator (96-gas-needle)

Reaction block for 2000ml round bottom flask (one flask capacity), suitable for 280℃ and 340°C series