English to Spanish Tech/Engineering Mechanics / Mech Engineering

Hola a todos, estoy con una patente sobre un proceso de etiquetado en molde. Mi duda es con "draw-blow moulding unit".
Solo aparece una vez y no he encontrado nada en la web:

"...a moulding machine consisting of an injection moulding unit for moulding a preform; a rotary moulding machine which is adapted to receive the preform directly or after the temperature thereof has been regulated, and which has a draw-blow moulding unit provided with a blow mould for moulding the preform into a hollow container and a moulded product
recovering unit; and a label insert unit."

Gracias por cualquier ayuda!