A chromium free tanning agent and its preparation method
A smart home sofa with safety protection function for infants and young children
A massage sofa with a detachable structure
A sofa with a rotating structure
A Adjusting Mechanism for Massage Sofa
A supporting structure for sofas
A mobile mechanism for massage sofas
A spliced multi segment functional sofa
A Power Safety Connection Structure for a Functional Sofa
Patent: 9742642
Patent: 9718434
Patent: 9971782