pad lock:pad lock, locks world of the oldest and largest family, can be said that the other locks are in this category from the padlock reproduction derived.
stainless steel padlock:stainless steel padlock is relatively strong antioxidant capacity, suitable for outdoor and difficult process, the cost is relatively high, home burglar performance.
brass padlock:brass padlock financial material is copper, the more common small brass padlock, that is less than 40mm size, mainly copper is relatively high.
