Products mainly USES and the scope for ship, oil were bags of cloth along with oil dropped frontlets between the personnel and let rescue.
产品主要用途及适用范围用于船舶遇难时，将布油袋内的油沿途抛洒，以作记号，让救援的人员找到。
2
And it shall be for a token upon thine hand, and for frontlets between thine eyes: for by strength of hand the LORD brought us forth out of Egypt.
13：16这要在你手上作记号，在你额上作经文，因为耶和华用大能的手将我们从埃及领出来。
3
Therefore shall ye lay up these my words in your heart and in your soul, and bind them for a sign upon your hand, that they may be as frontlets between your eyes.