{"id":2464,"date":"2023-10-24T14:40:08","date_gmt":"2023-10-24T06:40:08","guid":{"rendered":"https:\/\/www.casingtube.com\/?p=2464"},"modified":"2023-10-25T17:54:47","modified_gmt":"2023-10-25T09:54:47","slug":"manufacturing-process-of-k55-api-5ct-casing","status":"publish","type":"post","link":"https:\/\/www.casingtube.com\/ja\/manufacturing-process-of-k55-api-5ct-casing\/","title":{"rendered":"K55 API 5CT\u30b1\u30fc\u30b7\u30f3\u30b0\u306e\u88fd\u9020\u5de5\u7a0b"},"content":{"rendered":"
\n

K55<\/strong><\/a> \u00a0API<\/strong> 5c<\/strong><\/a>t<\/strong><\/a><\/strong><\/a>\u30b1\u30fc\u30b7\u30f3\u30b0\u3092\u88fd\u9020\u5de5\u7a0b\u306b\u63a1\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8<\/h3>
\n\u88fd\u9020\u30d7\u30ed\u30bb\u30b9\u3067 K55 API 5CT \u30b1\u30fc\u30b7\u30f3\u30b0\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u975e\u5e38\u306b\u6709\u76ca\u3067\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u30b1\u30fc\u30b7\u30f3\u30b0\u306f\u3001\u5751\u4e95\u306e\u58c1\u3092\u5185\u5f35\u308a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u92fc\u7ba1\u306e\u4e00\u7a2e\u3067\u3001\u901a\u5e38\u306f\u77f3\u6cb9\u304a\u3088\u3073\u30ac\u30b9\u7523\u696d\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5751\u4e95\u306e\u5727\u529b\u306b\u8010\u3048\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u307e\u305f\u5751\u4e95\u3092\u6f5c\u5728\u7684\u306a\u640d\u50b7\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\n
api 5ct l80<\/strong><\/a><\/strong><\/a><\/strong><\/a> \u30b1\u30fc\u30b7\u30f3\u30b0 \u30c1\u30e5\u30fc\u30d6 <\/strong>\u30b0\u30ec\u30fc\u30c9\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9<\/strong><\/strong><\/td><\/tr>
\u30b0\u30ec\u30fc\u30c9<\/strong><\/strong><\/td>\u30b0\u30ec\u30fc\u30c9\u306e\u7a2e\u985e<\/strong><\/strong><\/td>\u5546\u54c1\u306e\u30d0\u30f3\u30c9\u6570\u3068\u8272 <\/strong>a <\/strong>\u9577\u3055\u3042\u308a <\/strong> 1.8m<\/strong><\/strong><\/td>\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u306e\u8272<\/strong><\/strong><\/td><\/tr>
<\/strong><\/td> <\/strong><\/td> <\/strong><\/td>\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u5168\u4f53<\/strong><\/strong><\/td>\u30d0\u30f3\u30c9 <\/strong>b\u3001c<\/strong><\/strong><\/td><\/tr>
1<\/strong><\/strong><\/td>2<\/strong><\/strong><\/td>3<\/strong><\/strong><\/td>4<\/strong><\/strong><\/td>5<\/strong><\/strong><\/td><\/tr>
H40<\/td> <\/td>\u306a\u3057\u3001\u307e\u305f\u306f\u30e1\u30fc\u30ab\u30fc\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u9ed2\u3044\u30d0\u30f3\u30c9<\/td>\u306a\u3057<\/td>\u30d1\u30a4\u30d7\u3082\u540c\u69d8<\/td><\/tr>
J55<\/strong><\/a>\u30c1\u30e5\u30fc\u30d6<\/td> <\/td>\u660e\u308b\u3044\u30b0\u30ea\u30fc\u30f3 1\u672c<\/td>\u660e\u308b\u3044\u7dd1<\/td>\u306a\u3057<\/td><\/tr>
J55\u30b1\u30fc\u30b7\u30f3\u30b0<\/td> <\/td>\u660e\u308b\u3044\u30b0\u30ea\u30fc\u30f3 1\u672c<\/td>\u660e\u308b\u3044\u7dd1<\/td>\u767d\u4e00\u8272<\/td><\/tr>
K55<\/td> <\/td>\u9bae\u3084\u304b\u306a\u30b0\u30ea\u30fc\u30f32\u672c<\/td>\u660e\u308b\u3044\u7dd1<\/td>\u306a\u3057<\/td><\/tr>
N80<\/strong><\/a><\/td>1<\/td>\u8d641\u672c<\/td>\u30ec\u30c3\u30c9<\/td>\u306a\u3057<\/td><\/tr>
N80<\/td>\u8cea\u554f<\/td>\u8d64\u304c 1 \u3064\u3001\u660e\u308b\u3044\u7dd1\u304c 1 \u3064<\/td>\u30ec\u30c3\u30c9<\/td>\u30b0\u30ea\u30fc\u30f3<\/td><\/tr>
R95<\/td> <\/td>\u30ef\u30f3\u30d6\u30e9\u30a6\u30f3<\/td>\u30d6\u30e9\u30a6\u30f3<\/td>\u306a\u3057<\/td><\/tr>
L80<\/td>1<\/td>\u8d64 1 \u3064\u3001\u8336\u8272 1 \u3064<\/td>\u30ec\u30c3\u30c9<\/td>\u30ef\u30f3\u30d6\u30e9\u30a6\u30f3<\/td><\/tr>
L80<\/td>9Cr<\/td>\u8d64 1 \u3064\u3001\u8336\u8272 1 \u3064\u3001\u9ec4\u8272 2 \u3064<\/td>\u306a\u3057<\/td>\u9ec4\u82722\u672c<\/td><\/tr>
L80<\/td>13Cr<\/td>\u8d64 1 \u3064\u3001\u8336\u8272 1 \u3064\u3001\u9ec4\u8272 1 \u3064<\/td>\u306a\u3057<\/td>\u9ec4\u82721\u672c<\/td><\/tr>
C90<\/strong><\/a><\/td>1<\/td>\u30ef\u30f3\u30d1\u30fc\u30d7\u30eb<\/td>\u30d1\u30fc\u30d7\u30eb<\/td>\u306a\u3057<\/td><\/tr>
T95<\/strong><\/a><\/td>1<\/td>\u30b7\u30eb\u30d0\u30fc1\u679a<\/td>\u30b7\u30eb\u30d0\u30fc<\/td>\u306a\u3057<\/td><\/tr>
C110<\/td> <\/td>\u767d 1 \u3064\u3001\u8336\u8272 2 \u3064<\/td>\u30db\u30ef\u30a4\u30c8<\/td>\u30c4\u30fc\u30d6\u30e9\u30a6\u30f3<\/td><\/tr>
P110<\/strong><\/a><\/td> <\/td>\u767d\u4e00\u8272<\/td>\u30db\u30ef\u30a4\u30c8<\/td>\u306a\u3057<\/td><\/tr>
Q125<\/strong><\/a><\/td>1<\/td>\u30aa\u30ec\u30f3\u30b8 1\u500b<\/td>\u30aa\u30ec\u30f3\u30b8<\/td>\u306a\u3057<\/td><\/tr>
a \u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u6750\u6599\u306e\u5834\u5408\u3001\u8cfc\u5165\u5951\u7d04\u306b\u5225\u6bb5\u306e\u6307\u5b9a\u304c\u306a\u3044\u9650\u308a\u3001\u30e1\u30fc\u30ab\u30fc\u306e\u5185\u90e8\u8981\u4ef6\u304c\u9069\u7528\u3055\u308c\u308b\u3082\u306e\u3068\u3057\u307e\u3059\u3002<\/td><\/tr>
b \u7279\u6b8a\u30af\u30ea\u30a2\u30e9\u30f3\u30b9 \u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u306b\u3082\u9ed2\u8272\u306e\u30d0\u30f3\u30c9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/td><\/tr>
c \u30b7\u30fc\u30eb\u30ea\u30f3\u30b0\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u306b\u3082\u9752\u8272\u306e\u30d0\u30f3\u30c9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>
\n\u77f3\u6cb9\u30d1\u30a4\u30d7\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30b8\u30e7\u30a4\u30f3\u30c8\u3001\u4e2d\u56fd\u306e\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u4f1a\u793e\u3001\u30bf\u30f3\u30af\u304b\u3089\u30dc\u30a4\u30e9\u30fc\u307e\u3067\u306e\u77f3\u6cb9\u30d1\u30a4\u30d7\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u306e\u65ad\u71b1\u6750\u3001\u30ad\u30ed\u3042\u305f\u308a\u306e\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u5efa\u8a2d\u30b3\u30b9\u30c8\u3001\u8fd1\u304f\u3067\u8ca9\u58f2\u3055\u308c\u3066\u3044\u308b\u77f3\u6cb9\u30d1\u30a4\u30d7\u3001\u4e2d\u56fd\u306e\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u8acb\u8ca0\u696d\u8005\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30ab\u30c3\u30bf\u30fc\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u6f0f\u308c\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u30b5\u30a4\u30ba\u30c1\u30e3\u30fc\u30c8\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u5efa\u8a2d\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u6e05\u6383\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30d5\u30a7\u30f3\u30b9\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u4f1a\u793e\u3001\u77f3\u6cb9\u30d1\u30a4\u30d7\u6eb6\u63a5\u6a5f K55 API 5CT \u30b1\u30fc\u30b7\u30f3\u30b0\u306f\u3001\u9ad8\u54c1\u4f4d\u92fc\u5408\u91d1\u3067\u4f5c\u3089\u308c\u3066\u304a\u308a\u3001\u6b21\u306e\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u975e\u5e38\u306b\u8010\u4e45\u6027\u304c\u3042\u308a\u3001\u8010\u8150\u98df\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u77f3\u6cb9\u304a\u3088\u3073\u30ac\u30b9\u7523\u696d\u3067\u983b\u7e41\u306b\u906d\u9047\u3059\u308b\u6975\u7aef\u306a\u6e29\u5ea6\u3084\u5727\u529b\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u77f3\u6cb9\u304a\u3088\u3073\u30ac\u30b9\u7523\u696d\u3067\u306e\u4f7f\u7528\u306b\u6700\u9069\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u306f\u5751\u4e95\u306e\u91cd\u91cf\u3068\u5751\u4e95\u3092\u901a\u3063\u3066\u9001\u308a\u51fa\u3055\u308c\u308b\u6d41\u4f53\u306e\u5727\u529b\u306b\u8010\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\n
\u5f15\u5f35\u5f37\u5ea6\u304a\u3088\u3073\u786c\u3055\u306e\u8981\u4ef6<\/strong><\/strong><\/td><\/tr>
\u30b0\u30ec\u30fc\u30c9<\/strong><\/strong><\/td> <\/strong><\/td> <\/strong><\/td>\u964d\u4f0f\u5f37\u3055MPa<\/strong><\/strong><\/td>\u5f15\u5f35 <\/strong>\u5f37\u307f<\/strong><\/strong><\/td>\u786c\u5ea6 <\/strong>a,c<\/strong><\/td>\u6307\u5b9a\u8089\u539a<\/strong><\/strong><\/td>\u8a31\u5bb9\u786c\u5ea6 <\/strong>\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3 <\/strong>b<\/strong><\/td><\/tr>
<\/strong><\/td>\u7a2e\u985e<\/strong><\/strong><\/td>\u8377\u91cd\u6642\u306e\u7dcf\u4f38\u3073<\/strong><\/strong><\/td> <\/strong><\/td>\u6700\u5c0fMPa<\/strong><\/strong><\/td>\u6700\u5927<\/strong><\/strong><\/td> <\/strong><\/td> <\/strong><\/td><\/tr>
<\/strong><\/td> <\/td> <\/td>\u5206<\/strong><\/strong><\/td>\u6700\u5927<\/strong><\/strong><\/td> <\/td>HRC<\/strong><\/strong><\/td>HBW<\/strong><\/strong><\/td>mm<\/strong><\/strong><\/td>HRC<\/strong><\/strong><\/td><\/tr>
1<\/strong><\/strong><\/td>2<\/strong><\/strong><\/td>3<\/strong><\/strong><\/td>4<\/strong><\/strong><\/td>5<\/strong><\/strong><\/td>6<\/strong><\/strong><\/td>7<\/strong><\/strong><\/td>8<\/strong><\/strong><\/td>9<\/strong><\/strong><\/td>10<\/strong><\/strong><\/td><\/tr>
H40<\/td> <\/td>0.5<\/td>276<\/td>552<\/td>414<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
J55<\/td> <\/td>0.5<\/td>379<\/td>552<\/td>517<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
K55<\/td> <\/td>0.5<\/td>379<\/td>552<\/td>655<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
N80<\/td>1<\/td>0.5<\/td>552<\/td>758<\/td>689<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
N80<\/td>\u8cea\u554f<\/td>0.5<\/td>552<\/td>758<\/td>689<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
R95<\/td> <\/td>0.5<\/td>655<\/td>758<\/td>724<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
L80 L80<\/td>1<\/td>0.5<\/td>552<\/td>655<\/td>655<\/td>23<\/td>241<\/td> <\/td> <\/td><\/tr>
L80<\/td>9Cr13Cr<\/td>0.5<\/td>552<\/td>655<\/td>655<\/td>23<\/td>241<\/td> <\/td> <\/td><\/tr>
<\/td> <\/td>0.5<\/td>552<\/td>655<\/td>655<\/td>23<\/td>241<\/td> <\/td> <\/td><\/tr>
C90<\/td>1<\/td>0.5<\/td>621<\/td>724<\/td>689<\/td>25.4<\/td>255<\/td> 12.70<\/td>3<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>12.71\uff5e19.04<\/td>4<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>19:05\uff5e25:39<\/td>5<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> 25.40<\/td>6<\/td><\/tr>
T95<\/td>1<\/td>0.5<\/td>655<\/td>758<\/td>724<\/td>25.4<\/td>255<\/td> 12.70<\/td>3<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>12.71\uff5e19.04<\/td>4<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>19:05\uff5e25:39<\/td>5<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> 25.40<\/td>6<\/td><\/tr>
C110<\/td> <\/td>0.7<\/td>758<\/td>828<\/td>793<\/td>30<\/td>286<\/td> 12.70<\/td>3<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>12.71\uff5e19.04<\/td>4<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>19:05\uff5e25:39<\/td>5<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> 25.40<\/td>6<\/td><\/tr>
P110<\/td> <\/td>0.6<\/td>758<\/td>965<\/td>862<\/td> <\/td> <\/td> <\/td> <\/td><\/tr>
Q125<\/td>1<\/td>0.65<\/td>862<\/td>1034<\/td>931<\/td>b<\/td> <\/td> 12.70<\/td>3<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>12.71\uff5e19.04 19.05<\/td>4<\/td><\/tr>
<\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td>5<\/td><\/tr>
a \u7d1b\u4e89\u306e\u5834\u5408\u3001\u5b9f\u9a13\u5ba4\u306e\u30ed\u30c3\u30af\u30a6\u30a7\u30eb C \u786c\u5ea6\u8a66\u9a13\u304c\u5be9\u5224\u65b9\u6cd5\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u3082\u306e\u3068\u3057\u307e\u3059\u3002<\/td><\/tr>
b \u786c\u5ea6\u306e\u5236\u9650\u306f\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u6700\u5927\u5909\u52d5\u306f 7.8 \u304a\u3088\u3073 7.9 \u306b\u5f93\u3063\u3066\u88fd\u9020\u7ba1\u7406\u3068\u3057\u3066\u5236\u9650\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/td><\/tr>
c \u30b0\u30ec\u30fc\u30c9 L80 (\u3059\u3079\u3066\u306e\u30bf\u30a4\u30d7)\u3001C90\u3001T95\u3001\u304a\u3088\u3073 C110 \u306e\u58c1\u8cab\u901a\u786c\u5ea6\u8a66\u9a13\u306e\u5834\u5408\u3001HRC \u30b9\u30b1\u30fc\u30eb\u3067\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u8981\u4ef6\u306f\u6700\u5927\u5e73\u5747\u786c\u5ea6\u6570\u3067\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>
\n\u30b1\u30fc\u30b7\u30f3\u30b0\u30d1\u30a4\u30d7\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u4e95\u6238\u30d1\u30a4\u30d7\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u6700\u9ad8\u30d1\u30a4\u30d7\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u5bfe\u30ad\u30e3\u30ea\u30a2\u30d1\u30a4\u30d7\u3001AC\u30d1\u30a4\u30d7\u7528\u30b1\u30fc\u30b7\u30f3\u30b0\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u92fc\u7ba1\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u30d1\u30a4\u30d7\u30b5\u30a4\u30ba\u3001\u30b1\u30fc\u30b7\u30f3\u30b0PVC\u30d1\u30a4\u30d7\u4fa1\u683c\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u30d1\u30a4\u30d7\u3001\u4e2d\u56fd\u306e\u30b1\u30fc\u30b7\u30f3\u30b0\u30d1\u30a4\u30d7\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u30ad\u30e3\u30c3\u30d4\u30f3\u30b0\u30d1\u30a4\u30d7\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u30c9\u30ea\u30eb\u30d1\u30a4\u30d7K55 API 5CT \u30b1\u30fc\u30b7\u30f3\u30b0\u306f\u3001\u8a2d\u7f6e\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u7c21\u5358\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8fc5\u901f\u304b\u3064\u7c21\u5358\u306b\u8a2d\u7f6e\u304a\u3088\u3073\u4fdd\u5b88\u3067\u304d\u308b\u305f\u3081\u3001\u88fd\u9020\u30d7\u30ed\u30bb\u30b9\u3067\u306e\u4f7f\u7528\u306b\u6700\u9069\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30b1\u30fc\u30b7\u30f3\u30b0\u306f\u5751\u4e95\u306e\u91cd\u91cf\u3068\u5751\u4e95\u3092\u901a\u3063\u3066\u9001\u308a\u51fa\u3055\u308c\u308b\u6d41\u4f53\u306e\u5727\u529b\u306b\u8010\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8fc5\u901f\u304b\u3064\u7c21\u5358\u306b\u8a2d\u7f6e\u304a\u3088\u3073\u4fdd\u5b88\u3067\u304d\u308b\u305f\u3081\u3001\u88fd\u9020\u30d7\u30ed\u30bb\u30b9\u3067\u306e\u4f7f\u7528\u306b\u6700\u9069\u3067\u3059\u3002
\n\n
\n
@dfty3119fqm<\/a>

API 5CT J55 Casing Tubing Specification<\/p> \u266c original sound – steel pipe supplier – steel pipe supplier<\/a> <\/section> <\/blockquote>