§¹§ä§à§Ò§í §å§Þ§Ö§ß§î§ê§Ú§ä§î §ã§ä§â§Ö§ã§ã §Ú §Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§ñ §ã§Þ§Ö§ë§Ö§ß§Ú§ñ §Ò§å§â§à§Ó§à§Ô§à §â§Ñ§ã§ä§Ó§à§â§Ñ §ß§Ñ§ã§à§ã §à§Ò§í§é§ß§à §å§ã§ä§Ñ§ß§Ñ§Ó§Ý§Ú§Ó§Ñ§Ö§ä§ã§ñ §ß§Ñ §Ý§Ú§ß§Ú§Ú
§ß§Ñ§Ô§ß§Ö§ä§Ñ§ß§Ú§ñ §Ó§à§Ù§Õ§å§ê§ß§í§ç §á§à§Õ§å§ê§Ö§Ü, §â§Ñ§ã§ê§Ú§â§Ö§ß§ß§í§Û §Ó§Õ§í§ç§Ñ§Ö§Þ§í§Û §ã§ä§â§å§Ü§ä§å§â§å §Ó§à§Ù§Õ§å§ê§ß§à§Ô§à §Þ§Ö§ê§Ü§Ñ §Þ§à§Ö§Û §Ü§à§Þ§á§Ñ§ß§Ú§Ú §Ú
§ß§Ñ§Õ§Ö§Ø§ß§å§ð §â§Ñ§Ò§à§ä§å, §Þ§à§Ø§ß§à §Õ§à§Ò§Ú§ä§î§ã§ñ §ß§Ñ§Ú§Ý§å§é§ê§Ö§Ô§à §ï§æ§æ§Ö§Ü§ä§Ñ §Ó§ã§Ñ§ã§í§Ó§Ñ§ß§Ú§ñ §ß§Ñ§ã§à§ã§Ñ §Ô§â§ñ§Ù§Ú, §ê§Ú§â§à§Ü§à §Ú§ã§á§à§Ý§î§Ù§å§Ö§ä§ã§ñ §Ó
§ß§Ö§æ§ä§ñ§ß§à§Û §´§â§å§Ò§à§á§â§à§Ó§à§Õ§ß§í§Û §ä§â§Ñ§ß§ã§á§à§â§ä §Ó§í§ã§à§Ü§à§Ô§à §Õ§Ñ§Ó§Ý§Ö§ß§Ú§ñ §ç§Ú§Þ§Ú§é§Ö§ã§Ü§Ú§ç §Ó§Ö§ë§Ö§ã§ä§Ó, §ï§ä§à §Þ§à§Ø§Ö§ä §ã§Ò§Ñ§Ý§Ñ§ß§ã§Ú§â§à§Ó§Ñ§ä§î
§Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö §á§Ú§Ü §Ò§å§â§à§Ó§à§Ô§à §ß§Ñ§ã§à§ã§Ñ §ä§Ö§Ü§å§é§Ö§Û §ã§â§Ö§Õ§í §á§à§Õ §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö§Þ, §ã§ä§Ñ§Ò§Ú§Ý§Ú§Ù§Ú§â§à§Ó§Ñ§ä§î §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö, §å§Þ§Ö§ß§î§ê§Ú§ä§î §á§à§ä§Ö§â§Ú
§ï§æ§æ§Ö§Ü§ä§Ñ. §±§â§à§Õ§å§Ü§ä §ä§Ñ§Ü§Ø§Ö §Þ§à§Ø§Ö§ä §Ò§í§ä§î §Ú§ã§á§à§Ý§î§Ù§à§Ó§Ñ§ß §Ó §Ü§Ñ§é§Ö§ã§ä§Ó§Ö §Ó§à§Ù§Õ§å§ê§ß§à§Ô§à §ß§Ñ§ã§à§ã§Ñ §Ú §Ñ§Þ§à§â§ä§Ú§Ù§Ñ§ä§à§â§à§Ó §ã§à
§ã§ä§Ñ§Ò§Ú§Ý§Ú§Ù§Ñ§ä§à§â§à§Þ.
§¯§Ñ §Ò§å§â§à§Ó§à§Þ §ß§Ñ§ã§à§ã§Ö :
§¯§Ñ §Ý§Ú§ß§Ú§Ú §ß§Ñ§Ô§ß§Ö§ä§Ñ§ß§Ú§ñ §å§ã§ä§Ñ§ß§à§Ó§Ü§Ú, §Ó§í §Þ§à§Ø§Ö§ä§Ö §ã§Ò§Ñ§Ý§Ñ§ß§ã§Ú§â§à§Ó§Ñ§ä§î §á§Ú§Ü§à§Ó§à§Ö §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö §Ò§å§â§à§Ó§à§Ô§à §ß§Ñ§ã§à§ã§Ñ §ä§Ö§Ü§å§é§Ö§Û
§ã§â§Ö§Õ§í §á§à§Õ §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö§Þ, §ã§ä§Ñ§Ò§Ú§Ý§Ú§Ù§Ú§â§à§Ó§Ñ§ä§î §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö, §ã§ß§Ú§Ù§Ú§ä§î §á§à§ä§Ö§â§Ú §Ú §à§Ò§Ö§ã§á§Ö§é§Ú§ä§î §Ò§Ö§Ù§à§á§Ñ§ã§ß§à§ã§ä§î §â§à§Ý§Ú
§Ó§ã§Ñ§ã§í§Ó§Ñ§ß§Ú§ñ §Ò§å§â§à§Ó§à§Ô§à §ß§Ñ§ã§à§ã§Ñ §Õ§Ý§ñ §Õ§à§ã§ä§Ú§Ø§Ö§ß§Ú§ñ §ß§Ñ§Ú§Ý§å§é§ê§Ú§ç §â§Ö§Ù§å§Ý§î§ä§Ñ§ä§à§Ó.
§£§í§Õ§Ö§Ý§Ö§ß§Ú§Ö §Ò§å§æ§Ö§â§Ñ:
§³§Ò§â§à§ã §Ü§à§ß§è§Ö §å§ã§ä§Ñ§ß§à§Ó§Ü§Ú §ß§Ñ§ã§à§ã§Ñ §Ú §Ü§à§Þ§á§â§Ö§ã§ã§à§â§Ñ §Þ§à§Ø§ß§à §Ú§Ù§Ò§Ö§Ø§Ñ§ä§î §Ú§Ù§Ù§Ñ §Õ§Ñ§Ó§Ý§Ö§ß§Ú§ñ §Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§ñ §Ó§í§Ù§í§Ó§Ñ§ð§ä
§å§ã§ä§Ñ§Ý§à§ã§ä§î §è§Ú§Ý§Ú§ß§Õ§â§à§Ó §á§à§â§ê§ß§Ú, §Ü§Ý§Ñ§á§Ñ§ß§í §Ú §á§à§Ó§â§Ö§Ø§Õ§Ö§ß§Ú§ñ §ä§â§å§Ò§à§á§â§à§Ó§à§Õ§à§Ó §Ü§Ñ§Õ§â§à§Ó, §á§â§à§Õ§Ý§Ö§Ó§Ñ§ñ §ä§Ö§Þ §ã§Ñ§Þ§í§Þ
§ã§â§à§Ü §ã§Ý§å§Ø§Ò§í §à§Ò§à§â§å§Õ§à§Ó§Ñ§ß§Ú§ñ.
§±§à§Ô§Ý§à§ë§Ö§ß§Ú§Ö §Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§ñ:
§£ §Ô§Ú§Õ§â§Ñ§Ó§Ý§Ú§é§Ö§ã§Ü§à§Û §ã§Ú§ã§ä§Ö§Þ§Ö §à§ä§Ü§â§í§ä§í§ç §Ü§Ý§Ñ§á§Ñ§ß§Ñ§ç §Ú §â§Ñ§Ù§Ý§Ú§é§ß§í§Ö §Õ§â§å§Ô§Ú§Ö §á§â§Ú§é§Ú§ß§í §Ó§ß§Ö§Ù§Ñ§á§ß§à§Ô§à §Ù§Ñ§Ü§â§í§ä§Ú§ñ
§Ü§Ý§Ñ§á§Ñ§ß§Ñ,§Ó§í§Ù§à§Ó§Ö§ä §æ§à§â§Þ§Ú§â§à§Ó§Ñ§ß§Ú§Ö §à§Ô§â§à§Þ§ß§à§Ö §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö §Ó§à§Ù§Õ§Ö§Û§ã§ä§Ó§Ú§Ö §Ô§Ú§Õ§â§Ñ§Ó§Ý§Ú§é§Ö§ã§Ü§à§Ô§à §å§Õ§Ñ§â§Ñ, §ß§Ñ§ß§à§ã§ñ §å§ë§Ö§â§Ò
§´§â§å§Ò§í §Ú §â§Ñ§Ù§â§í§Ó §Þ§Ö§ã§ä§à, §Ñ §ä§Ñ§Ü§Ø§Ö §à§ã§ä§Ñ§Ý§î§ß§à§Ö §à§Ò§à§â§å§Õ§à§Ó§Ñ§ß§Ú§Ö. §±§à§ã§Ý§Ö §å§ã§ä§Ñ§ß§à§Ó§Ü§Ú §Ó§Õ§í§ç§Ñ§Ö§Þ§í§Û §á§à§Õ§å§ê§Ü§Ñ
§Ò§Ö§Ù§à§á§Ñ§ã§ß§à§ã§ä§Ú, §Þ§à§Ø§Ö§ä §ã§Ý§å§Ø§Ú§ä§î §Ó §Ü§Ñ§é§Ö§ã§ä§Ó§Ö §Ò§å§æ§Ö§â§Ñ, §é§ä§à§Ò§í §Ú§Ù§Ò§Ö§Ø§Ñ§ä§î §ï§ä§à§Ô§à §ñ§Ó§Ý§Ö§ß§Ú§ñ.
§°§Ò§â§Ñ§ä§ß§à§Ö §Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§Ö:
§¬§à§Ô§Õ§Ñ §Ô§à§Ý§à§Ó§Ü§Ñ §ß§Ñ§ã§à§ã§Ñ §Õ§à§ã§ä§Ú§Ô§Ñ§Ö§ä §à§á§â§Ö§Õ§Ö§Ý§Ö§ß§ß§à§Û §Ó§í§ã§à§ä§í, §Ø§Ú§Õ§Ü§à§ã§ä§î §á§à§Ý§å§é§Ñ§ð§ä §á§å§ä§Ö§Þ §à§Ò§â§Ñ§ä§ß§à§Û §ä§à§Ü§à§Þ §Ó
§Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§Û §Ü§Ý§Ñ§á§Ñ§ß§Ñ §Ó§í§Ù§í§Ó§Ñ§Ö§ä §Ó§ß§Ö§Ù§Ñ§á§ß§à§Ö §Ù§Ñ§Ü§â§í§ä§Ú§Ö §ß§Ñ§ã§à§ã§Ñ. §µ§ã§ä§Ñ§ß§à§Ó§Ú§ä§Ö §á§Ñ§Ü§Ö§ä §Ó§ã§Ñ§ã§í§Ó§Ñ§Ö§Þ§à§Ô§à §Ó§à§Ù§Õ§å§ç§Ñ,
§Þ§à§Ô§å§ä §á§à§Ô§Ý§à§ë§Ñ§ä§î §é§Ñ§ã§ä§î §Ü§à§Ý§Ö§Ò§Ñ§ß§Ú§Û.
§±§à§ä§à§Þ§å §é§ä§à §å§ã§ä§â§à§Û§ã§ä§Ó§à §Ú§ã§á§à§Ý§î§Ù§å§Ö§ä §å§ß§Ú§Ü§Ñ§Ý§î§ß§í§Û §Õ§Ú§Ù§Ñ§Û§ß, §Ü§à§ä§à§â§í§Û §Þ§à§Ø§Ö§ä §ç§â§Ñ§ß§Ú§ä§î§ã§ñ §ß§Ñ §ã§á§â§à§ã
§Ô§Ú§Õ§â§Ñ§Ó§Ý§Ú§é§Ö§ã§Ü§Ú§Û §á§â§Ö§ã§ã §ï§ß§Ö§â§Ô§Ú§Ú §Þ§à§Ø§Ö§ä §à§Ò§Ö§ã§á§Ö§é§Ú§ä§î §ß§Ö§Ü§à§ä§à§â§å§ð §ï§ß§Ö§â§Ô§Ú§ð §Ó §Ü§â§Ñ§ä§Ü§à§ã§â§à§é§ß§à§Û §á§Ö§â§ã§á§Ö§Ü§ä§Ú§Ó§Ö
§Ó §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§Ú§Ú §ã §Ü§Ý§Ú§Ö§ß§ä§à§Þ,§Ü§à§ä§à§â§í§Û §Ú§Þ§Ö§Ö§ä §â§Ö§ê§Ñ§ð§ë§Ö§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§Ö §Õ§Ý§ñ §à§Ò§Ö§ã§á§Ö§é§Ö§ß§Ú§ñ §ã§Þ§Ñ§Ù§Ü§Ú (§ã§à§á§Ý§à)
§á§à§Ó§à§â§à§ä§ß§í§Û §ã§á§â§Ú§ß§Ü§Ý§Ö§â§ß§à§Û §à§é§Ö§ß§î §á§à§Ý§Ö§Ù§ß§à,§Þ§à§Ø§Ö§ä §é§ä§à§Ò§í §á§â§Ö§Õ§à§ä§Ó§â§Ñ§ä§Ú§ä§î §á§â§Ö§â§í§Ó§Ñ§ß§Ú§Ö, §Ó§í§Ù§Ó§Ñ§ß§ß§à§Ö
§Õ§à§â§à§Ô§Ú§ç §ã§Þ§Ñ§Ù§à§é§ß§í§ç §Þ§Ñ§ä§Ö§â§Ú§Ñ§Ý§à§Ó (§ã§à§á§Ö§Ý) §á§à§Ó§à§â§à§ä§ß§à§Ô§à §ã§á§â§Ú§ß§Ü§Ý§Ö§â§ß§à§Û §à§ä§Ü§Ñ§Ù§Ñ §à§ä §á§à§Ó§â§Ö§Ø§Õ§Ö§ß§Ú§Û.
§³§ä§â§å§Ü§ä§å§â§Ñ §Ú §ç§Ñ§â§Ñ§Ü§ä§Ö§â§Ú§ã§ä§Ú§Ü§Ú §á§â§à§Õ§å§Ü§ä§Ñ:
§¯§Ñ§ê §Õ§Ö§Þ§á§æ§Ö§â §á§å§Ý§î§ã§Ñ§è§Ú§Ú , §á§à§Ý§å§é§Ú§Ý §Ô§à§ã§å§Õ§Ñ§â§ã§ä§Ó§Ö§ß§ß§í§Û §á§Ñ§ä§Ö§ß§ä. §±§â§à§Õ§å§Ü§ä§í §ß§Ñ §â§í§ß§Ü§Ö, §Ù§Ñ§Ó§à§Ó§Ñ§Ö§ä §ê§Ú§â§à§Ü§à§Ö
§á§â§Ú§Ù§ß§Ñ§ß§Ú§Ö §à§ä§Ö§é§Ö§ã§ä§Ó§Ö§ß§ß§í§ç §Ú §Ù§Ñ§â§å§Ò§Ö§Ø§ß§í§ç §á§à§Ý§î§Ù§à§Ó§Ñ§ä§Ö§Ý§Ö§Û, §Ú§Ù§Õ§Ö§Ý§Ú§Ö §å§ß§Ú§Ü§Ñ§Ý§î§ß§à§Ö §á§â§à§Ú§Ù§Ó§Ö§Õ§Ö§ß§Ú§Ö §á§â§à§è§Ö§ã§ã
§Ü§à§Ó§Ü§Ú §Ú §Ú§ß§æ§à§â§Þ§Ñ§è§Ú§à§ß§ß§í§ç §ä§Ö§ç§ß§à§Ý§à§Ô§Ú§Û §Ó §è§Ö§Ý§à§Þ §Ý§Ú§ä§î§Ö §Þ§Ö§ç§Ñ§ß§Ú§é§Ö§ã§Ü§Ñ§ñ §à§Ò§â§Ñ§Ò§à§ä§Ü§Ñ, §ï§Ý§Ý§Ú§á§ã§à§Ú§Õ §ã§ä§â§å§Ü§ä§å§â§Ñ
(§â§Ö§Þ§Ö§ß§î §Ò§Ö§Ù §ã§Ó§Ñ§â§Ü§Ú) §Ú§Ù§Þ§Ö§ß§Ú§Ý §ä§â§Ñ§Õ§Ú§è§Ú§à§ß§ß§í§Û §á§â§à§è§Ö§ã§ã, §é§ä§à§Ò§í §á§â§Ú§ß§Ö§ã§ä§Ú §Õ§Ö§æ§Ö§Ü§ä§ß§í§Û §á§â§à§Õ§å§Ü§ä, §ä§Ñ§Ü§Ú§Þ
§à§Ò§â§Ñ§Ù§à§Þ, §Ù§ß§Ñ§é§Ú§ä§Ö§Ý§î§ß§à §å§Ý§å§é§ê§Ñ§ñ §à§Ò§ë§å§ð §á§â§à§Ú§Ù§Ó§à§Õ§Ú§ä§Ö§Ý§î§ß§à§ã§ä§î §à§Ò§à§â§å§Õ§à§Ó§Ñ§ß§Ú§ñ, §á§â§à§Õ§Ý§Ú§ä§î §ã§â§à§Ü §ã§Ý§å§Ø§Ò§í
§Ó§ã§Ö§Ô§à §å§ã§ä§â§à§Û§ã§ä§Ó§Ñ, §Ó §Ò§Ö§Ù§à§á§Ñ§ã§ß§à§ã§ä§Ú, §ß§Ñ§Õ§Ö§Ø§ß§à§ã§ä§Ú §à§ã§à§Ò§Ö§ß§ß§à §Ù§Ñ§Þ§Ö§ä§ß§í§Þ.
§°§ã§à§Ò§Ö§ß§ß§à§ã§ä§Ú §á§â§à§Õ§å§Ü§ä§Ñ:
¡¤ §¸§Ö§Ý§Ñ§ñ §Ü§à§Ó§Ü§Ñ, §Ú§Þ§Ö§Ö§ä §Ó§í§ã§à§Ü§å§ð §á§â§à§é§ß§à§ã§ä§î §Ú §ç§à§â§à§ê§Ö§Ö §Ü§Ñ§é§Ö§ã§ä§Ó§à §á§à§Ó§Ö§â§ç§ß§à§ã§ä§Ú
¡¤ §±§à§ã§Ý§Ö §à§Ò§â§Ñ§Ò§à§ä§Ü§Ú §Ô§Ý§Ñ§Õ§Ü§å§ð §Ó§ß§å§ä§â§Ö§ß§ß§ð§ð §á§à§Ó§Ö§â§ç§ß§à§ã§ä§î, §é§ä§à §á§à§Ù§Ó§à§Ý§ñ§Ö§ä §Ý§Ö§Ô§Ü§à §á§Ö§â§Ö§Þ§Ö§ë§Ñ§ä§î§ã§ñ §Ó§Ó§Ö§â§ç §Ú
§Ó§ß§Ú§Ù §Þ§à§é§Ö§Ó§à§Ô§à §á§å§Ù§í§â§ñ.
¡¤ §ª§ß§ä§Ö§â§æ§Ö§Û§ã §â§Ñ§Ù§â§Ñ§Ò§à§ä§Ñ§ß §Ó §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§Ú§Ú §ã §ä§â§Ö§Ò§à§Ó§Ñ§ß§Ú§ñ§Þ§Ú §á§à§Ý§î§Ù§à§Ó§Ñ§ä§Ö§Ý§ñ.
¡¤ §°§Ò§à§Ý§à§é§Ü§Ú §á§â§Ú§Þ§Ö§ß§Ú§ä§Ö§Ý§î§ß§à §Ü §â§Ñ§Ù§Ý§Ú§é§ß§í§Þ §Þ§Ñ§ä§Ö§â§Ú§Ñ§Ý§Ñ§Þ.
¡¤ §®§à§é§Ö§Ó§à§Ô§à §á§å§Ù§í§â§ñ, §å§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§ß§í§Û §ß§Ñ Balance Board, §Ú§Ù§Ò§Ö§Ø§Ñ§ä§î §ã§Ü§Ý§Ñ§Õ§í§Ó§Ñ§ß§Ú§ñ §Þ§à§é§Ö§Ó§à§Ô§à §á§å§Ù§í§â§ñ §Ú
§ã§ä§â§Ö§Þ§Ý§Ö§ß§Ú§Ö §Ü §Õ§à§ã§ä§Ú§Ø§Ö§ß§Ú§ð §è§Ö§Ý§Ú §å§Ý§å§é§ê§Ö§ß§Ú§ñ §Ø§Ú§Ù§ß§Ú §Þ§à§é§Ö§Ó§à§Ô§à §á§å§Ù§í§â§ñ.
§¬§Ý§ð§é§Ö§Ó§í§Ö §á§à§Ü§Ñ§Ù§Ñ§ä§Ö§Ý§Ú §ï§æ§æ§Ö§Ü§ä§Ú§Ó§ß§à§ã§ä§Ú:
§®§Ö§ç§Ñ§ß§Ú§é§Ö§ã§Ü§Ú§Ö §ã§Ó§à§Û§ã§ä§Ó§Ñ §à§ã§ß§à§Ó§ß§à§Ô§à §Þ§Ñ§ä§Ö§â§Ú§Ñ§Ý§Ñ I.
¦Äb¡Ý655Mpa ¦Äs¡Ý517Mpa ¦Ä5¡Ý18% §æ¡Ý35%
§¬§Ñ§é§Ö§ã§ä§Ó§à §á§â§à§Õ§å§Ü§è§Ú§Ú II: §Ó §ã§ä§â§à§Ô§à§Þ §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§Ú§Ú §ã (API) §³§ä§Ñ§ß§Õ§Ñ§â§ä§ß§í§Û 16§¡ §¡§Þ§Ö§â§Ú§Ü§Ñ§ß§ã§Ü§à§Ô§à §Ú§ß§ã§ä§Ú§ä§å§ä§Ñ
§ß§Ö§æ§ä§Ú, §é§ä§à§Ò§í §á§â§à§Ö§Ü§ä§Ú§â§à§Ó§Ñ§ß§Ú§ñ §Ú §á§â§à§Ú§Ù§Ó§à§Õ§ã§ä§Ó§Ñ, §Ú §Ó §è§Ö§Ý§à§Þ §ß§Ö§â§Ñ§Ù§â§å§ê§Ñ§ð§ë§Ö§Ô§à §Ü§à§ß§ä§â§à§Ý§ñ.
§ª§ã§á§í§ä§Ñ§ä§Ö§Ý§î§ß§à§Ö §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö III:
§´§Ö§ã§ä: 1. §¥§Ñ§Ó§Ý§Ö§ß§Ú§Ö: §ß§à§Þ§Ú§ß§Ñ§Ý§î§ß§à§Ö §â§Ñ§Ò§à§é§Ö§Ö §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö 3000 ~ 7500psi;
§®§Ñ§Ü§ã§Ú§Þ§Ñ§Ý§î§ß§à§Ö §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö §Ú§ã§á§í§ä§Ñ§ß§Ú§ñ 10000psi
2. §á§â§à§Ó§Ö§â§Ü§Ñ §Ô§Ö§â§Þ§Ö§ä§Ú§é§ß§à§ã§ä§Ú: §Õ§Ñ§Ó§Ý§Ö§ß§Ú§Ö §á§ß§Ö§Ó§Þ§Ñ§ä§Ú§é§Ö§ã§Ü§à§Ô§à §ä§Ö§ã§ä§Ñ 1500psi