1. Strategic Leveling and Alignment (Part 1): Utilization of Open Coil Springs

Speaker	Dr. Jeong-il Kim
Running Time	30:12
Language	Korean
Subtitle	English
Available for	10 days after purchase
Price	30 $ (30 P)

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Before using points
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After using points
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- If 7 days have elapsed from the payment date, additional penalty is deducted.
- Bonus points received when purchasing points are not included in the refund amount.
- Penalty: More than 7 days after service starts: 10% of the payment is deducted from the refund amount.
- Lecture purchase details = List price of individual lectures X (Used lectures / All lectures).
1) Members may request cancellation of payment (subscription withdrawal) from the company within 7 days from the date of payment, provided that the member has not used the paid service or product at all.
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When the value of goods, etc., has significantly decreased due to the member's use or partial consumption.
When the value of the goods has decreased significantly over time, making it difficult to sell again

If the packaging of reproducible goods, etc. is damaged