Door-fit check
Door thickness, opening direction and mortise data are checked before quotation
Smart lock quality control
SINON SHENG SHI INDUSTRY CO., LIMITED is registered in Hong Kong, with factory operations in Shenzhen, Guangdong, China. We help B2B buyers clarify product, door, target market and configuration details before quotation.
Quality control
Quality requirements reviewed against the order.
Quality discussion starts from the selected model, door condition and acceptance requirements. Do not treat unverified package icons as certificate evidence.
Function check
Access methods and platform version are reviewed against the selected model
Packing check
Appearance and packing requirements are confirmed with the order scope
Certificate boundary
Unverified package icons are not treated as certificate evidence