用mandril造句子，“mandril”造句

Specially design co-extruding die, merely need to replace core mandril, it may produce solid-wall pipe, solid wall inner helix pipe foamed pipe and foam inner helix pipe.

Obiective Test the relationship between the heating time of electrothermal vaporizing liquid and the residues of pyrethroid in mandril.

It give out an efficient method of saw band machine tensile system lag determination through the analysis of time lag state equation on high elasticity mandril model saw band machine tensile system.