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(ÇØ´ç »çÀÌÆ®ÀÇ ´ã´çÀÚ²²¼­ ÀúÈñ ÀÚ·áÀÇ ¼öÁ¤ º¸¿Ï ¿ä±¸°¡ ÀÖÀ» ½Ã Áï½Ã ¹Ý¿µÇÏ¿© µå¸®°Ú½À´Ï´Ù.)

http://www.astm.org/
American Society for Testing & Meterial (ASTM).
http://www.wicnet.org/
Woodwork Institute of California.
http://www.awci.org/
The Association of the Wall and Ceiling Industries
http://www.bca.org.uk/
British Cement Association. (BCA)
http://www.cisca.org/
Ceiling & interior system construction association. (CISCA). õÀå°ú ³»ºÎ °øÁ¤¿¡ ´ëÇÑ °¢Á¾ Á¤º¸ Á¦°ø.

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