New technology NFC smart padlock wholesale
product Padlock brand IS or OEM quality level: high, medium, normal shape square, round, diamond, rectangular, lamination, hammer, disc, etc. material (grade) SUS304 〉 SUS201 〉 brass 〉 zinc alloy 〉 aluminum 〉 iron size: (width) 20 to 100mm, etc. lock body: heavy duty / mid-heavy duty / thin shackle: hardened steel,…