ããªãã®å®¶ã«ã¯ã©ã¡ãã®å£çŽãé©ããŠããã®ã§ããããïŒð 3åã§ããããã€ã³ãâ ã·ã«ã¯å£çŽïŒãããŒã«å£çŽïŒã¯èä¹ æ§ãé«ãããæå ¥ããããããããããªãã³ã°ãå»äžã§ãã䜿ãããŸããâ çŽå£çŽã¯äŸ¡æ Œãæ¯èŒçå®ãããªãã©ãŒã è²»çšãæãããå Žåã«éžã°ããããšãå€ãã§ããâ ã©ã¡ãã«ãé·æãšçæããããäºç®ã»ã©ã€ãã¹ã¿ã€ã«ã»æœå·¥ããéšå±ã«åãããŠéžã¶ããšã倧åã§ããã·ã«ã¯å£çŽãšçŽå£çŽã¯äœãéãã®ã§ããããïŒå£çŽãåŒµãæ¿ãããšããå€ãã®äººãæåã«æ©ãã®ããã®è³ªåã§ãããã·ã«ã¯å£çŽãšçŽå£çŽãã©ã¡ããéžã¹ã°ããã§ããïŒãå®ã¯ãæ£è§£ã¯äžã€ã§ã¯ãããŸãããéšå±ã®çšéãäºç®ãã¡ã³ããã³ã¹æ¹æ³ã«ãã£ãŠãæé©ãªå£çŽã¯å€ãããŸããããããã®ç¹åŸŽã詳ããèŠãŠãããŸãããã1. ã·ã«ã¯å£çŽãšã¯ïŒãã·ã«ã¯å£çŽããšããååãããæ¬ç©ã®ã·ã«ã¯ïŒçµ¹ïŒã§äœãããŠãããšæãããããšããããŸãããããéåœã§ã¯ã衚é¢ã«PVCïŒãã..