We try to keep a stock of the more commonly used pigs and darts, but because
of the changing nature of demands this is not always practicable. For the
burst disc darts and shear pigs we therefore keep a number of discs, bodies,
noses and raw materials in ready access. We can usually supply a few within
a few days. It is, however, not wise to rely on instant manufacture. The
now standard high temperature versions cannot be produced quickly because
of the nature of the materials; it is essential to plan ahead.