1 Black skin and Asian skin have thicker and more compact dermis than white skin. This is also why blacks and Asians have fewer facial wrinkles than whites.  Black skin has more casual lipids and more moisture in the stratum corneum than white skin.
A software development kit (SDK or  devkit ) is typically a set of software development tools that allows the creation of applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar development platform.
PUK Code Retrieve | SIM Unlock. PUK is the abbreviation of Personal unlocking key. It is an unique code consists of 6 to 10 digits which will be created for each mobile SIM card by the network provider itself. As mentioned above, every mobile network provider set a PUK code and PIN code for a SIM card. The only reason for setting these codes is ensuring security to their customers. SIM number is different from PUK number. Click here to know your SIM number. If you enter your PIN code incorrectly for three times, the PIN code will be locked and your Phone will ask PUK code. At this time you have to be very careful and should contact your network provider through online or other landlin,mobile phone to get the PUK code.