ZJSB提升短节是使用优质铬钼合金钢，按照SY/T5699～95标准制造。提升短节的规格尺寸公称尺寸D+0.8 mm内径d mm外螺纹接头提升端 螺纹类型外径Dp±0.8mm倒角直径DFmm大钳咬合长度LPBmm外径DB±0.8mm吊卡根部圆角直径RSE±0.04mm大钳咬合长度LBmm 73.031.8NC2379.476.2 250.0 111.1 4.8 100.044.5NC26(23/8IF)88.982.9 88.954.0NC31(278IF)104.8100.4 250.0 127.0 4.8 100.050.8NC35120.7114.768.3NC38(31/2IF)127.0121.0 127.0 71.4NC44152.4144.5 250.0 168.3 6.4 100.0NC44158.8149.2  127.0 82.6 95.3NC46158.8150.0  250.0  168.3  6.4  100.0NC46165.1154.8NC46171.5159.5NC50(41/2IF)177.8164.7NC50(41/2IF)184.2169.5    127.0  82.6  95.3NC56196.8185.3    300    168.3    6.4    100.0NC56203.2190.165/8REG209.6195.7NC61228.6212.775/8RGE241.3223.8NC70247.7232.6NC70254.0237.3NC77279.4260.7