Fouad, these are original celsior/ls400 mounts. In this configuration, as i see it, there is nothing to limit the torques produced in directions which are not parallel to the bolt running through its center. This MIGHT pass for a strictly on-road vehicle, but for anything that moves off road, in cross axled situations or crow-hop during those 'kainchis', you will snap these rubbers like wafers before you know it. Please lose them ASAP.
Here i have shown a 3F engine mount, although it appears to be extremely 'chinese'. Encircled, you will notice metal overhanging plates which are present on three of the four sides. The idea is that you place the mount such that both of them work in conjunction to lock the engine's movement, both for forward/backward and left/right sway. This is done by placing the mounts such that the sides which are flat without any overhanging 'lock' plates face eachother when placed on the chassis' foundations and the overlap plates that you see on top of this picture face the vehicles fenders. That being done, the plate encircled on the top of this image limits sideways engine movement and the ones you see on the front (the back not being visible) limit forward and backward motion of the engine.
The rubber is just supposed to be an insulator for vibration of the engine and these plates actually hold it in place during off-road operation. Without correct placement, 'janiun' or desi mounts both fail equally quick.