Yunyu Industry Co .,Ltd were founded by SenLin, Lo in 1987. In the early stage, the original name was " Senda Corp.", we engaged in lock hardware trading in Taiwan domestic market. In 1991, Senda corp. were officially registered as "Yunyu Industry Co., Ltd" and transformed to lock manufacturer. We not only developed aluminum door lock of our own brand for Taiwan domestic market but also provided OEM & ODM service . And now we have customers from USA, Brazil, Japan, Australia....etc. We produce locks for doors, windows, mailbox,cabinet,^etc in everyone's daily life. And also produce lock cylinders that are specifically design and made for our customers.