| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain cock device capable of being easily and firmly installed and easily replaceable with a rubber cock with a chain. SOLUTION: An operation part installing plate 9 of a drain cock device installed on an inner wall surface 1b of a bathtub 1 is fixed to the bathtub inner wall surface 1b by a machine screw 10 of one place and a pressure sensitive adhesive double coated tape 11.
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