... outer box720 pieces/master cartonCap colorswhite, green, blue, yellow, orange, red, black, goldOEM servicesfree OEM label service is only up ... welcome to visit our factoryFAQ:What about "secondhand vapor"? Since e-cigarettes produce vapor, not smoke, many people assume they’re ... reveal that they have nicotine in their systems. Secondhand vapor may also transmit other dangerous chemicals to non-users and ...