活接头PIPE UNION螺纹承插焊接式不锈钢A105锻制高压MSS SP-83-2014 ¥30.00 螺纹等径三通TEENPS2CLASS3000NPT Thread Ends ASTM A 105 ¥45.00 螺纹变径接头REDUCING COUPLING 同心异径短节ASTM A105 ¥21.00 螺纹变径弯头螺纹90°弯头REDUCING ELBOW NPT Thread ASTM A 105 ¥74.00 弯头90度ELBOW 90 3000 SW ASME B16.11 A-105N 1" ¥9.00 ELBOW 45 LR SCH10s B16.9 A403WPW304L不锈钢弯头 ¥5.00