90° LR ELBOW (229 C/F) 90° LR ELBOW我们已知是90度长半径弯头,后面的(229

90° LR ELBOW (229 C/F) 90° LR ELBOW我们已知是90度长半径弯头,后面的(229 ELBOW,BW,90 DEG,LR,STD WALL,C.STL GB/T 8163-20 TO AP SPEC 4WPI-MCCW01 弯头“ Elbow 90- BW 90LR ELBOW sch.40,50NB SS里NB 50NB又等于多少呢? ELBOW+45+LR+SMLS+BW中lr是什么意思 英语翻译LW PIPE；BOSS；STUB END；ELBOW 90 LR；REDUCER CONCENTR；EQUAL TEE；WELDOLET；BLIND FLANGE；WN FLANGE；SUCTION STRAINER；SADDLE FIX；SEAMLESS PIPE； ELBOW 90 304L SCH.20 BW LR分别代表什么意思?ELBOW 90 304L SCH.20 BW LR SIZE是12FLANGE 304L SORF #150 SIZE是12FLANGES 304L RF #150CONCENTRIC REDUCER 304L BW SIZE 8*6分别代表什么意思?两个都满意.怎么分分啊? 45LR ELBOW NPT(female) CL2000 A105 ASME B16.11中cl2000 a105 lr Elbow 45° (R = 3 x 8寸 STD elbow my elbow是什么意思 elbow是什么意思 Me elbow elbow读音 elbow-to-elbow life?elbow-to-elbow life怎么翻译? elbow to 白巧克力的ELBOW ELBOW 已知四边形ABCD的周长为l,它的内切圆的半径为r,则四边形ABCD的面积为（ ）A lr B 1/2lr C 1/3lr D 1/4lr