{"id":4906,"date":"2026-09-10T02:52:08","date_gmt":"2026-09-10T02:52:08","guid":{"rendered":"https:\/\/vholdings.com.vn\/blog\/?p=4906"},"modified":"2026-09-10T02:52:08","modified_gmt":"2026-09-10T02:52:08","slug":"cua-thep-cach-am-bunka-pat-cau-hinh-chong-on-chuyen-dung","status":"publish","type":"post","link":"https:\/\/vholdings.com.vn\/blog\/tin-tuc\/cua-thep-cach-am-bunka-pat-cau-hinh-chong-on-chuyen-dung\/","title":{"rendered":"C\u1eeda Th\u00e9p C\u00e1ch \u00c2m Bunka PAT: C\u1ea5u H\u00ecnh Ch\u1ed1ng \u1ed2n Chuy\u00ean D\u1ee5ng"},"content":{"rendered":"<p data-path-to-node=\"2\">Ti\u1ebfng \u1ed3n l\u00e0m gi\u1ea3m nghi\u00eam tr\u1ecdng ch\u1ea5t l\u01b0\u1ee3ng m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c. N\u00f3 g\u00e2y m\u1ea5t t\u1eadp trung v\u00e0 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn s\u1ee9c kh\u1ecfe. T\u1ea1i c\u00e1c khu v\u1ef1c c\u1ea7n s\u1ef1 b\u1ea3o m\u1eadt, ti\u1ebfng \u1ed3n l\u00e0 r\u1ee7i ro l\u1edbn. H\u1ec7 c\u1eeda th\u00e9p c\u00e1ch \u00e2m Bunka PAT \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t. S\u1ea3n ph\u1ea9m gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a l\u01b0\u1ee3ng \u00e2m thanh r\u00f2 r\u1ec9. C\u1eeda \u0111\u1ea1t c\u1ea5p \u0111\u1ed9 c\u00e1ch \u00e2m hi\u1ec7u su\u1ea5t r\u1ea5t cao T-2 v\u00e0 T-3. Thi\u1ebft k\u1ebf n\u00e0y t\u1eadp trung v\u00e0o v\u1eadt li\u1ec7u l\u00f5i v\u00e0 \u0111\u1ed9 k\u00edn kh\u00edt. Thi\u1ebft b\u1ecb \u0111\u00e1p \u1ee9ng ho\u00e0n h\u1ea3o c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u00e2m h\u1ecdc kh\u1eaft khe.<\/p>\n<h2 data-path-to-node=\"3\">Nguy\u00ean L\u00fd Ch\u1ed1ng \u1ed2n V\u00e0 C\u1ea5u T\u1ea1o C\u1eeda Th\u00e9p C\u00e1ch \u00c2m Bunka PAT<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-3357\" src=\"https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1.jpeg\" alt=\"C\u1eeda c\u00e1ch \u00e2m Bunka\" width=\"1907\" height=\"2560\" srcset=\"https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1.jpeg 1907w, https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1-223x300.jpeg 223w, https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1-763x1024.jpeg 763w, https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1-768x1031.jpeg 768w, https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1-1144x1536.jpeg 1144w, https:\/\/vholdings.com.vn\/blog\/wp-content\/uploads\/2026\/05\/anh-cua-cach-am-scaled-1-1-1526x2048.jpeg 1526w\" sizes=\"(max-width: 1907px) 100vw, 1907px\" \/><\/p>\n<p data-path-to-node=\"4\">Ch\u00eca kh\u00f3a c\u1ee7a c\u00e1ch \u00e2m l\u00e0 v\u1eadt li\u1ec7u v\u00e0 vi\u1ec7c tri\u1ec7t ti\u00eau kho\u1ea3ng tr\u1ed1ng.<\/p>\n<h3 data-path-to-node=\"5\">Khung th\u00e9p ch\u1ecbu l\u1ef1c v\u00e0 ng\u01b0\u1ee1ng c\u1eeda Inox<\/h3>\n<p data-path-to-node=\"6\">Ph\u1ea7n khung c\u1eeda s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u th\u00e9p m\u1ea1 k\u1ebdm d\u00e0y 1.6 mm. \u0110\u1ed9 r\u1ed9ng khung c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh linh ho\u1ea1t t\u1eeb 100 mm \u0111\u1ebfn 250 mm. M\u1eb7t c\u00e1nh c\u1eeda \u0111\u01b0\u1ee3c ch\u1ea5n t\u1eeb v\u1eadt li\u1ec7u th\u00e9p m\u1ea1 k\u1ebdm d\u00e0y 1.2 mm. X\u01b0\u01a1ng t\u0103ng c\u1ee9ng b\u00ean trong c\u00e1nh c\u0169ng d\u00f9ng th\u00e9p d\u00e0y 1.6 mm. K\u1ebft c\u1ea5u n\u00e0y mang l\u1ea1i s\u1ef1 v\u1eefng ch\u1eafc tuy\u1ec7t \u0111\u1ed1i cho to\u00e0n b\u1ed9 h\u1ec7 c\u1eeda. Ri\u00eang ph\u1ea7n ng\u01b0\u1ee1ng c\u1eeda ch\u1ecbu ma s\u00e1t li\u00ean t\u1ee5c s\u1eed d\u1ee5ng Inox SUS 304. \u0110\u1ed9 d\u00e0y c\u1ee7a b\u1eadu c\u1eeda Inox n\u00e0y l\u00ean t\u1edbi 1.5 mm. B\u1ec1 m\u1eb7t kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u01a1n t\u0129nh \u0111i\u1ec7n ho\u00e0n thi\u1ec7n theo m\u00e0u ti\u00eau chu\u1ea9n Bunka.<\/p>\n<h3 data-path-to-node=\"7\">V\u1eadt li\u1ec7u l\u00f5i h\u1ea5p th\u1ee5 \u00e2m thanh<\/h3>\n<p data-path-to-node=\"8\">V\u1eadt li\u1ec7u l\u00f5i \u0111\u00f3ng vai tr\u00f2 h\u1ea5p th\u1ee5 v\u00e0 tri\u1ec7t ti\u00eau s\u00f3ng \u00e2m. S\u00f3ng \u00e2m khi \u0111i qua c\u00e1c l\u1edbp v\u1eadt li\u1ec7u s\u1ebd b\u1ecb c\u1ea3n l\u1ea1i \u0111\u00e1ng k\u1ec3. Bunka nh\u1ed3i b\u00f4ng kho\u00e1ng c\u00f3 t\u1ef7 tr\u1ecdng n\u00e9n 100 kg\/m3 v\u00e0o l\u00f5i c\u00e1nh. M\u1eadt \u0111\u1ed9 v\u1eadt ch\u1ea5t cao n\u00e0y gi\u00fap c\u00e1ch \u00e2m v\u00e0 c\u00e1ch nhi\u1ec7t c\u1ef1c k\u1ef3 t\u1ed1t. \u0110\u1ed3ng th\u1eddi, h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng gio\u0103ng cao su chuy\u00ean d\u1ee5ng Hokusho AZ-111. D\u1ea3i gio\u0103ng n\u00e0y ch\u1ea1y d\u1ecdc theo chu vi khung bao c\u1eeda. M\u00e9p d\u01b0\u1edbi c\u00e1nh c\u00f3 t\u00edch h\u1ee3p c\u1ee5c ch\u1eb7n c\u1eeda Kajisu \u0111\u1ed3ng b\u1ed9. S\u1ef1 k\u1ebft h\u1ee3p n\u00e0y lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c khe h\u1edf c\u01a1 kh\u00ed. \u00c2m thanh kh\u00f4ng th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c khe h\u1edf \u0111\u1ec3 truy\u1ec1n qua ph\u00f2ng kh\u00e1c.<\/p>\n<h2 data-path-to-node=\"9\">B\u1ea3ng Th\u00f4ng S\u1ed1 C\u1eeda Th\u00e9p C\u00e1ch \u00c2m K\u1ef9 Thu\u1eadt \u0110\u00e3 Ki\u1ec3m \u0110\u1ecbnh<\/h2>\n<p data-path-to-node=\"10\">Nh\u00e0 th\u1ea7u c\u1ea7n b\u00e1m s\u00e1t th\u00f4ng s\u1ed1 v\u1eadt l\u00fd \u0111\u1ec3 thi\u1ebft k\u1ebf \u00f4 ch\u1edd chu\u1ea9n x\u00e1c. C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u qu\u1ea3 ch\u1ed1ng \u1ed3n.<\/p>\n<table data-path-to-node=\"11\">\n<thead>\n<tr>\n<td><strong>H\u1ea1ng m\u1ee5c k\u1ef9 thu\u1eadt<\/strong><\/td>\n<td><strong>V\u1eadt li\u1ec7u \/ Ch\u1ec9 s\u1ed1<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"11,1,0,0\"><b data-path-to-node=\"11,1,0,0\" data-index-in-node=\"0\">Khung \u0111\u1ee9ng \/ Khung ngang<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,1,1,0\">Th\u00e9p m\u1ea1 k\u1ebdm d\u00e0y 1.6 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"11,2,0,0\"><b data-path-to-node=\"11,2,0,0\" data-index-in-node=\"0\">B\u1ec1 m\u1eb7t c\u00e1nh c\u1eeda<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,2,1,0\">Th\u00e9p m\u1ea1 k\u1ebdm d\u00e0y 1.2 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"11,3,0,0\"><b data-path-to-node=\"11,3,0,0\" data-index-in-node=\"0\">V\u1eadt li\u1ec7u l\u00f5i c\u00e1ch \u00e2m<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,3,1,0\">L\u00f5i b\u00f4ng kho\u00e1ng 100 kg\/m3<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"11,4,0,0\"><b data-path-to-node=\"11,4,0,0\" data-index-in-node=\"0\">Ng\u01b0\u1ee1ng c\u1eeda (Sill)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,4,1,0\">Inox SUS 304 d\u00e0y 1.5 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"11,5,0,0\"><b data-path-to-node=\"11,5,0,0\" data-index-in-node=\"0\">C\u1ea5p \u0111\u1ed9 c\u00e1ch \u00e2m<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,5,1,0\">\u0110\u1ea1t m\u1ee9c T-2 v\u00e0 T-3<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"11,6,0,0\"><b data-path-to-node=\"11,6,0,0\" data-index-in-node=\"0\">T\u00f9y ch\u1ecdn ch\u1ed1ng ch\u00e1y<\/b><\/span><\/td>\n<td><span data-path-to-node=\"11,6,1,0\">Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y EI 60 ph\u00fat<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-path-to-node=\"12\">Ti\u00eau Chu\u1ea9n \u00c2m H\u1ecdc Theo Kh\u00f4ng Gian Ki\u1ebfn Tr\u00fac<\/h2>\n<p data-path-to-node=\"13\">M\u1ed7i khu v\u1ef1c ch\u1ee9c n\u0103ng \u0111\u1ec1u c\u00f3 m\u1ed9t gi\u1edbi h\u1ea1n \u0111\u1ed9 \u1ed3n cho ph\u00e9p. Quy chu\u1ea9n x\u00e2y d\u1ef1ng lu\u00f4n quy \u0111\u1ecbnh r\u1ea5t r\u00f5 r\u00e0ng v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<p data-path-to-node=\"15\">Khu v\u1ef1c nh\u00e0 h\u00e0ng v\u00e0 v\u0103n ph\u00f2ng th\u01b0\u1eddng cho ph\u00e9p \u0111\u1ed9 \u1ed3n t\u1eeb 45-55 dB. M\u1ee9c \u0111\u1ed9 n\u00e0y kh\u00f4ng \u1ea3nh h\u01b0\u1edfng qu\u00e1 nhi\u1ec1u \u0111\u1ebfn giao ti\u1ebfp c\u01a1 b\u1ea3n. B\u1ec7nh vi\u1ec7n, kh\u00e1ch s\u1ea1n v\u00e0 ph\u00f2ng h\u1ecdc y\u00eau c\u1ea7u m\u1ee9c y\u00ean t\u0129nh 35-40 dB. B\u1ec7nh nh\u00e2n v\u00e0 h\u1ecdc sinh c\u1ea7n m\u1ed9t kh\u00f4ng gian \u00edt t\u1ea1p \u00e2m h\u01a1n. Nh\u00e0 h\u00e1t v\u00e0 ph\u00f2ng thu \u00e2m l\u1ea1i y\u00eau c\u1ea7u c\u1ef1c k\u1ef3 kh\u1eaft khe. M\u1ee9c \u0111\u1ed9 \u1ed3n t\u1ea1i \u0111\u00e2y ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p dao \u0111\u1ed9ng \u1edf m\u1ee9c 20-35 dB. K\u1ef9 s\u01b0 d\u1ef1 \u00e1n c\u1ea7n t\u00ednh to\u00e1n m\u1ee9c \u0111\u1ed9 suy gi\u1ea3m truy\u1ec1n \u00e2m. T\u1eeb \u0111\u00f3, kh\u00e1ch h\u00e0ng s\u1ebd ch\u1ecdn \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh c\u1eeda Bunka PAT ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n<p data-path-to-node=\"17\">Kh\u1ea3 n\u0103ng c\u00e1ch \u00e2m c\u1ee7a c\u1eeda kh\u00f4ng ch\u1ec9 l\u00e0 nh\u1eefng l\u1eddi qu\u1ea3ng c\u00e1o. D\u00f2ng c\u1eeda th\u00e9p PAT \u0111\u00e3 \u0111\u01b0\u1ee3c Vi\u1ec7n KHCN X\u00e2y d\u1ef1ng th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf. Vi\u1ec7n IBST l\u00e0 \u0111\u01a1n v\u1ecb ki\u1ec3m \u0111\u1ecbnh uy t\u00edn h\u00e0ng \u0111\u1ea7u t\u1ea1i Vi\u1ec7t Nam. M\u1eabu th\u1eed nghi\u1ec7m h\u1ec7 c\u1eeda th\u00e9p Bunka \u0111\u00e3 xu\u1ea5t s\u1eafc \u0111\u1ea1t ch\u1ee9ng nh\u1eadn T-3. Ng\u00e0y th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c c\u01a1 quan ch\u1ee9c n\u0103ng ghi nh\u1eadn l\u00e0 27\/03\/2024. Nh\u1edd \u0111\u00f3, s\u1ea3n ph\u1ea9m \u0111\u1ea3m b\u1ea3o t\u00ednh ph\u00e1p l\u00fd v\u1eefng ch\u1eafc v\u1ec1 m\u1eb7t h\u1ed3 s\u01a1. Ch\u1ee7 \u0111\u1ea7u t\u01b0 ho\u00e0n to\u00e0n y\u00ean t\u00e2m khi nghi\u1ec7m thu v\u1eadt li\u1ec7u \u0111\u01b0a v\u00e0o c\u00f4ng tr\u00ecnh.<\/p>\n<h2 data-path-to-node=\"18\">H\u1ec7 Ph\u1ee5 Ki\u1ec7n Kim Kh\u00ed \u0110\u1ed3ng B\u1ed9 Ch\u1ecbu T\u1ea3i<\/h2>\n<p data-path-to-node=\"19\">C\u1eeda c\u00e1ch \u00e2m l\u00f5i th\u00e9p th\u01b0\u1eddng c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng t\u1ed5ng th\u1ec3 kh\u00e1 n\u1eb7ng. H\u1ec7 th\u1ed1ng c\u1ea7n b\u1ed9 kim kh\u00ed ch\u1ecbu t\u1ea3i t\u1ed1t \u0111\u1ec3 \u00e9p ch\u1eb7t gio\u0103ng cao su. Ph\u1ee5 ki\u1ec7n k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd l\u00e0m c\u1eeda x\u1ec7 c\u00e1nh v\u00e0 h\u1edf gio\u0103ng.<\/p>\n<p data-path-to-node=\"20\">Thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng kh\u00f3a tay g\u1ea1t cao c\u1ea5p MIWA U9LA50-1(ST) ho\u1eb7c GOAL LX-5NU11S. Tay co th\u1ee7y l\u1ef1c \u0111i k\u00e8m l\u00e0 c\u00e1c d\u00f2ng Ryobi 8000, 8800 ho\u1eb7c 1000 series. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1nh c\u1eeda lu\u00f4n t\u1ef1 \u0111\u1ed9ng kh\u00e9p k\u00edn ho\u00e0n to\u00e0n. B\u1ea3n l\u1ec1 th\u00e9p ch\u1ecbu l\u1ef1c do th\u01b0\u01a1ng hi\u1ec7u Kinmatsu s\u1ea3n xu\u1ea5t nh\u01b0 BX-SD5, SD-639. S\u1ef1 \u0111\u1ed3ng b\u1ed9 c\u01a1 kh\u00ed n\u00e0y mang l\u1ea1i hi\u1ec7u n\u0103ng v\u1eadn h\u00e0nh tuy\u1ec7t v\u1eddi. C\u1eeda Bunka PAT \u0111\u1ea1t chu\u1ea9n \u0111\u1ed9 k\u00edn kh\u00ed A-4 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng gi\u00f3 S-6.<\/p>\n<p data-path-to-node=\"21\">Qu\u00fd \u0111\u1ed1i t\u00e1c vui l\u00f2ng g\u1eedi b\u1ea3n v\u1ebd m\u1eb7t b\u1eb1ng \u0111\u1ec3 b\u00f3c t\u00e1ch kh\u1ed1i l\u01b0\u1ee3ng. K\u1ef9 s\u01b0 Vholdings s\u1ebd t\u01b0 v\u1ea5n c\u1ea5u h\u00ecnh c\u1eeda th\u00e9p Bunka t\u1ed1i \u01b0u nh\u1ea5t.<\/p>\n<p><b>C\u00d4NG TY C\u1ed4 PH\u1ea6N QU\u1ed0C T\u1ebe VHOLDINGS VI\u1ec6T NAM<\/b><\/p>\n<p><span style=\"font-weight: 400;\">V\u0103n ph\u00f2ng H\u00e0 N\u1ed9i: S\u1ed1 29 Simco, \u0111\u01b0\u1eddng Ph\u1ea1m H\u00f9ng, Ph\u01b0\u1eddng T\u1eeb Li\u00eam, Th\u00e0nh ph\u1ed1 H\u00e0 N\u1ed9i<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u0103n ph\u00f2ng H\u1ed3 Ch\u00ed Minh: T\u1ea7ng 2, T\u00f2a nh\u00e0 IOS, 602\/27 \u0110i\u1ec7n Bi\u00ean Ph\u1ee7, Ph\u01b0\u1eddng Th\u1ea1nh M\u1ef9 T\u00e2y, Th\u00e0nh Ph\u1ed1 H\u1ed3 Ch\u00ed Minh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hotline: <\/span><span style=\"font-weight: 400;\">0916 012 886<\/span> <span style=\"font-weight: 400;\">\/0795 303 505<\/span><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Email: <\/span><span style=\"font-weight: 400;\">ceo@vholdings.com.vn<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ti\u1ebfng \u1ed3n l\u00e0m gi\u1ea3m nghi\u00eam tr\u1ecdng ch\u1ea5t l\u01b0\u1ee3ng m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c. N\u00f3 g\u00e2y m\u1ea5t t\u1eadp trung v\u00e0 \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn s\u1ee9c kh\u1ecfe. T\u1ea1i c\u00e1c khu v\u1ef1c c\u1ea7n s\u1ef1 b\u1ea3o m\u1eadt, ti\u1ebfng \u1ed3n l\u00e0 r\u1ee7i ro l\u1edbn. H\u1ec7 c\u1eeda th\u00e9p c\u00e1ch \u00e2m Bunka PAT \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t. S\u1ea3n ph\u1ea9m gi\u00fap gi\u1ea3m thi\u1ec3u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3078,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u1eeda Th\u00e9p C\u00e1ch \u00c2m Bunka PAT: C\u1ea5u H\u00ecnh Ch\u1ed1ng \u1ed2n Chuy\u00ean D\u1ee5ng<\/title>\n<meta name=\"description\" content=\"C\u1eeda th\u00e9p c\u00e1ch \u00e2m Bunka PAT \u0111\u1ea1t c\u1ea5p \u0111\u1ed9 T-3 theo th\u1eed nghi\u1ec7m IBST. 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