Paragraph
Part B
(a)
Unless falling within Part A(1) or A(2) of this Section, firing heavy clay goods or refractory materials (other than heavy clay goods) in a kiln.
(b)
Vapour glazing earthenware or clay with salts.
Part B
Unless falling within Part A(1) or A(2) of this Section, firing heavy clay goods or refractory materials (other than heavy clay goods) in a kiln.
Vapour glazing earthenware or clay with salts.