in construction design,the following processes are taken:dismountable shoulder for building drum,three formulas and nine pieces winding process for tread application,10 layers 1870dtex/2 nylon cord for carcass ply,4 layers 930dtex/2V 3 nylon cord for breaker ply,and 12×13 double bead wire ring for bead structure.
The charge was detonated by a nylon cord attached to the inside of the envelope which was stretched when the video cassette was pulled out of the envelope.