What kind of virtual currency is gzr

1. Gzr is the code compiled by the designer and can only be used here. The following notes have been explained clearly. It is the structural column of parapet. The starting and ending elevation position, section size, reinforcement and spacing have been clearly indicated.

2. Gzr oxygen barrier flame retardant cable, flame retardant means to block and delay the spread of flame along the wire and cable, so that the fire does not expand. This type of cable has self extinguishing performance after fire. I've never used a cable like this