Ancient Manchu birth habits. Popular in Liaoning, Jilin, Heilongjiang and other places. Before the establishment of the Qing Dynasty, the Manchus hanged a yellow cloth pocket next to the "ancestor's board" (symbol of the ancestors), called "mother pocket", which placed a thread of more than ten meters long, called "children's rope". "Long life rope." The boy, a red cloth and a small bow on the rope; a girl, tied a piece of blue cloth, people called "padlock." Padlock is a kind of anti-theft lock. The models are available in C, E, SBE, G type and other specifications. MUL-T-LOCK lock has anti-drilling, anti-smashing, anti-universal key, anti-shear, anti-twist, E, SBE The C-type padlock also has waterproof fog and anti-icing performance. E-type and G-type padlocks are available with anti-shear protection. The C-type padlock provides a hook-and-loop protection cover to further enhance the security and anti-theft performance of the padlock. The global patented interactive bead structure has active beads on the key and interacts with the corresponding active beads in the lock cylinder. It is a technically open nemesis, which is the highest level of anti-theft of mechanical locks. The lock body of E-type, SBE type and C-type padlock is made of super-hard alloy steel, the hardness of the shell is higher than 56 degrees; the G-type padlock is made of zinc alloy, all the padlock hooks are made of boron or manganese alloy, can withstand 2550 - 10200 kg force shear, 1530-10200 kg force pull. Ideal for machines, equipment, plumbing, banks, warehouses, escape doors, prisons, shops, shopping malls, offices, petrochemicals, oil transportation vehicles, toolboxes, and high-security venues. Prepainted Steel,Prepainted Galvanized Steel,Prepainted Galvalume Steel Cold Rolled Strip Co., Ltd. , http://www.jypicklingplate.com