Next, I would like to ask you, when was the last time your unit changed the sealing tape, how many years or about how many months did you change it? When was the last time this sealing tape was changed?
Next, I'd like to ask you, when, how many years or how many months did your company change the sealing belt last time? Under what circumstances was the sealing belt last replaced?
Next, I would like to ask you, when, years or months was the last time your company changed the sealing tape? When was the last time this sealing tape was replaced?