Resistant to heat and almost all chemicals. According to DIN EN ISO 4797.

Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks
Flasks flat bottom, NS joint
NS jointed flat bottom flasks