截面 3.53 mm
O 形環，ISO 3601: 截面 3.53 mm：84 個現成的 AutoCAD 圖塊（DWG），可免費下載並用於自己的專案，可整庫下載，也可單個下載。
84 個截面 3.53 mm 的 O 形環，規格代號 201 至 284：最常用的截面。
版本 1.0 · 更新於 2026年10月17日
使用 AutoCAD 2017 或更早的版本？ 下載 2010 格式
可免費用於你自己的專案並可修改，包括商業專案。ZIP 裡是一個 AutoCAD 2018 格式的普通 DWG 檔案和一份 README，不需要任何外掛程式。按現狀提供，不作任何擔保。
相關符號庫
搭配這些工具更省事
全部 84 個符號
共 84 個符號，顯示 84 個
O 形圈 4.34 x 3.53
O-ring 4.34 x 3.53
ORG_201屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 5.94 x 3.53
O-ring 5.94 x 3.53
ORG_202屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 7.52 x 3.53
O-ring 7.52 x 3.53
ORG_203屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 9.12 x 3.53
O-ring 9.12 x 3.53
ORG_204屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 10.69 x 3.53
O-ring 10.69 x 3.53
ORG_205屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 12.29 x 3.53
O-ring 12.29 x 3.53
ORG_206屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 13.87 x 3.53
O-ring 13.87 x 3.53
ORG_207屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 15.47 x 3.53
O-ring 15.47 x 3.53
ORG_208屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 17.04 x 3.53
O-ring 17.04 x 3.53
ORG_209屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 18.64 x 3.53
O-ring 18.64 x 3.53
ORG_210屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 20.22 x 3.53
O-ring 20.22 x 3.53
ORG_211屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 21.82 x 3.53
O-ring 21.82 x 3.53
ORG_212屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 23.39 x 3.53
O-ring 23.39 x 3.53
ORG_213屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 24.99 x 3.53
O-ring 24.99 x 3.53
ORG_214屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 26.57 x 3.53
O-ring 26.57 x 3.53
ORG_215屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 28.17 x 3.53
O-ring 28.17 x 3.53
ORG_216屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 29.74 x 3.53
O-ring 29.74 x 3.53
ORG_217屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 31.34 x 3.53
O-ring 31.34 x 3.53
ORG_218屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 32.92 x 3.53
O-ring 32.92 x 3.53
ORG_219屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 34.52 x 3.53
O-ring 34.52 x 3.53
ORG_220屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 36.09 x 3.53
O-ring 36.09 x 3.53
ORG_221屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 37.69 x 3.53
O-ring 37.69 x 3.53
ORG_222屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 40.87 x 3.53
O-ring 40.87 x 3.53
ORG_223屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 44.04 x 3.53
O-ring 44.04 x 3.53
ORG_224屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 47.22 x 3.53
O-ring 47.22 x 3.53
ORG_225屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 50.39 x 3.53
O-ring 50.39 x 3.53
ORG_226屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 53.57 x 3.53
O-ring 53.57 x 3.53
ORG_227屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 56.74 x 3.53
O-ring 56.74 x 3.53
ORG_228屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 59.92 x 3.53
O-ring 59.92 x 3.53
ORG_229屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 63.09 x 3.53
O-ring 63.09 x 3.53
ORG_230屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 66.27 x 3.53
O-ring 66.27 x 3.53
ORG_231屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 69.44 x 3.53
O-ring 69.44 x 3.53
ORG_232屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 72.62 x 3.53
O-ring 72.62 x 3.53
ORG_233屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 75.79 x 3.53
O-ring 75.79 x 3.53
ORG_234屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 78.97 x 3.53
O-ring 78.97 x 3.53
ORG_235屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 82.14 x 3.53
O-ring 82.14 x 3.53
ORG_236屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 85.32 x 3.53
O-ring 85.32 x 3.53
ORG_237屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 88.49 x 3.53
O-ring 88.49 x 3.53
ORG_238屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 91.67 x 3.53
O-ring 91.67 x 3.53
ORG_239屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 94.84 x 3.53
O-ring 94.84 x 3.53
ORG_240屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 98.02 x 3.53
O-ring 98.02 x 3.53
ORG_241屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 101.19 x 3.53
O-ring 101.19 x 3.53
ORG_242屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 104.37 x 3.53
O-ring 104.37 x 3.53
ORG_243屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 107.54 x 3.53
O-ring 107.54 x 3.53
ORG_244屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 110.72 x 3.53
O-ring 110.72 x 3.53
ORG_245屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 113.89 x 3.53
O-ring 113.89 x 3.53
ORG_246屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 117.07 x 3.53
O-ring 117.07 x 3.53
ORG_247屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 120.24 x 3.53
O-ring 120.24 x 3.53
ORG_248屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 123.42 x 3.53
O-ring 123.42 x 3.53
ORG_249屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 126.59 x 3.53
O-ring 126.59 x 3.53
ORG_250屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 129.77 x 3.53
O-ring 129.77 x 3.53
ORG_251屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 132.94 x 3.53
O-ring 132.94 x 3.53
ORG_252屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 136.12 x 3.53
O-ring 136.12 x 3.53
ORG_253屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 139.29 x 3.53
O-ring 139.29 x 3.53
ORG_254屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 142.47 x 3.53
O-ring 142.47 x 3.53
ORG_255屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 145.64 x 3.53
O-ring 145.64 x 3.53
ORG_256屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 148.82 x 3.53
O-ring 148.82 x 3.53
ORG_257屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 151.99 x 3.53
O-ring 151.99 x 3.53
ORG_258屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 158.34 x 3.53
O-ring 158.34 x 3.53
ORG_259屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 164.69 x 3.53
O-ring 164.69 x 3.53
ORG_260屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 171.04 x 3.53
O-ring 171.04 x 3.53
ORG_261屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 177.39 x 3.53
O-ring 177.39 x 3.53
ORG_262屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 183.74 x 3.53
O-ring 183.74 x 3.53
ORG_263屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 190.09 x 3.53
O-ring 190.09 x 3.53
ORG_264屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 196.44 x 3.53
O-ring 196.44 x 3.53
ORG_265屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 202.79 x 3.53
O-ring 202.79 x 3.53
ORG_266屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 209.14 x 3.53
O-ring 209.14 x 3.53
ORG_267屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 215.49 x 3.53
O-ring 215.49 x 3.53
ORG_268屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 221.84 x 3.53
O-ring 221.84 x 3.53
ORG_269屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 228.19 x 3.53
O-ring 228.19 x 3.53
ORG_270屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 234.54 x 3.53
O-ring 234.54 x 3.53
ORG_271屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 240.89 x 3.53
O-ring 240.89 x 3.53
ORG_272屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 247.24 x 3.53
O-ring 247.24 x 3.53
ORG_273屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 253.59 x 3.53
O-ring 253.59 x 3.53
ORG_274屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 266.29 x 3.53
O-ring 266.29 x 3.53
ORG_275屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 278.99 x 3.53
O-ring 278.99 x 3.53
ORG_276屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 291.69 x 3.53
O-ring 291.69 x 3.53
ORG_277屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 304.39 x 3.53
O-ring 304.39 x 3.53
ORG_278屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 329.79 x 3.53
O-ring 329.79 x 3.53
ORG_279屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 355.19 x 3.53
O-ring 355.19 x 3.53
ORG_280屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 380.59 x 3.53
O-ring 380.59 x 3.53
ORG_281屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 405.26 x 3.53
O-ring 405.26 x 3.53
ORG_282屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 430.66 x 3.53
O-ring 430.66 x 3.53
ORG_283屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O 形圈 456.06 x 3.53
O-ring 456.06 x 3.53
ORG_284屬性
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
找不到需要的符號？告訴我們名稱就好。
用於零件清單的屬性
每個圖塊的型號標記是可見屬性（例如 O-ring 29.87 x 3.53）。不可見屬性有 SIZE_CODE、ID_MM、CS_MM、STANDARD、MATERIAL、HARDNESS_IRHD、PART_NO、MANUFACTURER、QTY 與 REMARKS。規格代號、內徑與截面已填好，材料與硬度請依你的訂購需求修改。
用 BlockSync 把組裝圖中的 O 形環匯出到 Excel，得到含規格、材料與數量的明細表，修改後可一次寫回圖面，寫回前有預覽並自動備份。
怎麼使用這個符號庫
- 解壓檔案，開啟 DWG。把需要的符號複製到你的平面圖裡，或者從設計中心（ADCENTER）把圖塊拖進來。
- 圓環依真實尺寸繪製，1 個繪圖單位 = 1 mm：內圓是內徑，外圓是內徑加兩倍截面。請以 1:1 插入。小圓環就畫得很小，目錄圖只是為了方便檢視才把它們放大。
- 插入點是圓環的中心。左邊是端視圖，右邊是剖開的截面：中心線上下各一個截面直徑的圓，所以同一個圖塊既能用在平面視圖，也能用在剖視圖。需要哪個視圖就分解圖塊，保留那一部分。
- 五個庫只在截面上不同，請依需要的截面選庫，再依規格代號或內徑查找。圖塊名稱是 ORG_ 加規格代號，例如 ORG_210。