安装工程通用计算表.xlsx

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1、桂桂林林七七星星安安置置房房安安装装工工程程楼楼层层信信息息配配管管信信息息 层层高高楼楼层层变变量量标标高高备备注注 8#8#楼楼(A)(A) 负负1F1F5 5A0FA0F-5-5A A代代表表8#8#楼楼，0 0代代表表地地下下室室。 1F1F4.54.5A1FA1F0 0 2F2F4.54.5A2FA2F4.54.5 3F3F2.82.8A3FA3F7.37.3 4F4F2.82.8A4FA4F10.110.1 5F5F2.82.8A5FA5F12.912.9 6F6F2.82.8A6FA6F15.715.7 7F7F2.82.8A7FA7F18.518.5 8F8F2.82.8A8F

2、A8F21.321.3 9F9F2.82.8A9FA9F24.124.1 10F10F2.82.8A10FA10F26.926.9 11F11F2.82.8A11FA11F29.729.7 12F12F2.82.8A12FA12F32.532.5 13F13F2.82.8A13FA13F35.335.3 14F14F2.82.8A14FA14F38.138.1 15F15F2.82.8A15FA15F40.940.9 16F16F2.82.8A16FA16F43.743.7 17F17FA17FA17F 9#9#楼楼(B)(B) 负负1F1F5 5B0FB0F-5-5B B代代表表9#9#楼楼

3、，0 0代代表表地地下下室室。 1F1F4.54.5B1FB1F0 0 2F2F4.54.5B2FB2F4.54.5 3F3F2.82.8B3FB3F7.37.3 4F4F2.82.8B4FB4F10.110.1 5F5F2.82.8B5FB5F12.912.9 6F6F2.82.8B6FB6F15.715.7 7F7F2.82.8B7FB7F18.518.5 8F8F2.82.8B8FB8F21.321.3 9F9F2.82.8B9FB9F24.124.1 10F10F2.82.8B10FB10F26.926.9 11F11F2.82.8B11FB11F29.729.7 12F12F2.82

4、.8B12FB12F32.532.5 13F13F2.82.8B13FB13F35.335.3 14F14F2.82.8B14FB14F38.138.1 15F15F2.82.8B15FB15F40.940.9 16F16F2.82.8B16FB16F43.743.7 17F17FB17FB17F 10#(C)10#(C) 负负1F1F5.35.3C0FC0F-5.3-5.3C C代代表表10#10#楼楼，0 0代代表表地地下下室室。 1F1F4.54.5C1FC1F0 0 2F2F4.54.5C2FC2F4.54.5 3F3F2.82.8C3FC3F7.37.3 4F4F2.82.8C4FC

5、4F10.110.1 5F5F2.82.8C5FC5F12.912.9 6F6F2.82.8C6FC6F15.715.77F7F2.82.8C7FC7F18.518.5 8F8F2.82.8C8FC8F21.321.3 9F9F2.82.8C9FC9F24.124.1 10F10F2.82.8C10FC10F26.926.9 11F11F2.82.8C11FC11F29.729.7 12F12F2.82.8C12FC12F32.532.5 13F13F2.82.8C13FC13F35.335.3 14F14F2.82.8C14FC14F38.138.1 15F15F2.82.8C15FC15F

6、40.940.9 16F16F2.82.8C16FC16F43.743.7 17F17F2.82.8C17FC17F46.546.5 13#13#楼楼(D)(D) 负负1F1F5 5D0FD0FD D代代表表13#13#楼楼，0 0代代表表地地下下室室。 1F1FD1FD1F 2F2FD2FD2F 3F3FD3FD3F 4F4FD4FD4F 5F5FD5FD5F 6F6FD6FD6F 7F7FD7FD7F 8F8FD8FD8F 9F9FD9FD9F 10F10FD10FD10F 11F11FD11FD11F 12F12FD12FD12F 13F13FD13FD13F 14F14FD14FD14

7、F 15F15FD15FD15F 16F16FD16FD16F 17F17FD17FD17F配配线线信信息息桥桥架架信信息息灯灯具具设设备备信信息息 明明配配管管电电线线50*2550*25 50*5050*50 100*100100*100 200*100200*100 300*100300*100 300*150300*150 400*100400*100 400*150400*150 暗暗配配管管电电缆缆600*200600*200 800*200800*200桂桂林林七七星星安安置置房房安安装装工工程程线式构件 规规格格单单位位工工程程量量备备注注审审核核点点式式构构件件汇汇总总 名名

8、称称规规格格单单位位工工程程量量备备注注审审核核点点式式构构件件汇汇总总目目录录名名称称规规格格计计算算式式数数量量(PDX)(PDX)单单位位备备注注目目录录名名称称规规格格计计算算式式数数量量(SB)(SB)单单位位备备注注序序部部位位配配电电箱箱规规格格/ /负负荷荷配配管管水水平平(F)(F)竖竖向向(G)(G)配配线线根根数数 (I)(I)管管内内穿穿线线(J)(J)桥桥架架配配线线(K)(K)预预留留(L)(L)倍倍数数(M)(M)管管小小计计(N)(N)线线小小计计(O)(O)备备注注线线缆缆端端头头 小小计计(Q)(Q)配配管管竖竖向向 小小计计(X)(X)管管内内穿穿线线 小

9、小计计(Y)(Y)桥桥架架配配线线 小小计计(Z)(Z)根根数数/ /预预留留 检检查查(U)(U)管管内内穿穿线线 检检查查(V)(V)配配管管 检检查查(PG)(PG)线线缆缆 检检查查(XL)(XL)设设备备数数审审核核目目录录名名称称规规格格计计算算式式工工程程量量(QJ)(QJ)单单位位备备注注桥桥 架架 支支 架架 计计 算算 表表桥架宽度100mm以下的吊架采用单杆吊架，按照图集04D701-3-7778页方案9；桥架间距按规范GB50303-2002第33页图纸确定取中间值D+E-20(A+20+B+20) *2图集确定桥架宽桥架高桥架长度M结构梁高mm距梁高度mm支架间距M单

10、吊长度mm吊框长度mm吊杆个数50508001001.58802802100508001001.588038021001004002001.55804802桥架宽度1501200采用圆钢门架支架,门架横担型钢详下表，图纸确定暂取中间值D+E+BA+100图集确定桥架宽桥架高桥架长度M结构梁高mm距梁高度mm支架间距单吊长度横梁长度吊杆个数1001504002001.57502002200504002001.565030022001004002001.570030022001504002001.57503002桥架宽桥架高桥架长度M结构梁高mm距梁高度mm支架间距单吊长度横梁长度吊杆个数3001

11、007002001.5100040023001509001001.5115040023002004002001.580040024001004002001.570050024001504002001.575050024002004002001.58005002桥架宽桥架高桥架长度M结构梁高mm距梁高度mm支架间距单吊长度横梁长度吊杆个数5001006001001.580060025001506001001.585060025002006001001.590060025002506001001.595060026001509001001.5115070026002006001001.590070

12、026003006001001.5100070028001509001001.5115090028003006001001.510009002桥架宽桥架高桥架长度M结构梁高mm距梁高度mm支架间距单吊长度横梁长度吊杆个数100015025001001.527501100210003006001001.5100011002120015025001001.527501300212004006001001.5110013002说说明明：只需填入桥架长度、梁高、距梁高度，支架间距，其他自动计算，其他已锁定如需密码，请扫描二维码。(G*I*J+H*K)/1000C/FN*P10吊架KG/ML30*3角铁

13、比重支架单支重量KG支架个数支架总重KG0.6171.3731.470360.000.000.6171.3731.607660.000.000.6171.3731.374760.000.00(G*I*J+H*K)/1000C/FN*P10吊架比重L40*4角铁比重支架单支重量KG支架个数支架总重0.6172.4221.40990.000.000.6172.4221.52870.000.000.6172.4221.59040.000.000.6172.4221.65210.000.0010吊架比重L40*4角铁比重支架单支重量KG支架个数支架总重0.6172.4222.20280.000.000

14、.6172.4222.38790.000.000.6172.4221.9560.000.000.6172.4222.07480.000.000.6172.4222.13650.000.000.6172.4222.19820.000.0010吊架比重L50*5型钢比重支架单支重量KG支架个数支架总重0.6173.773.24920.000.000.6173.773.31090.000.000.6173.773.37260.000.000.6173.773.43430.000.000.6173.774.05810.000.000.6173.773.74960.000.000.6173.773.87

15、30.000.000.6173.774.81210.000.000.6173.774.6270.000.0012吊架比重L50*5型钢比重支架单支重量KG支架个数支架总重0.8883.779.0310.000.000.8883.775.9230.000.000.8883.779.7850.000.000.8883.776.85460.000.000.000.000.000.00当红蓝汇总量不同时 说明表格出现问题桥桥 架架 支支 架架 计计 算算 表表图集确定图集确定名名称称规规格格计计算算式式工工程程量量(FL)(FL)1.1.筏筏板板基基础础接接地地 2.2.接接地地母母线线4*40镀锌扁

16、钢 3.3.防防雷雷引引下下线线 4.4.避避雷雷带带 5.5.避避雷雷带带支支架架 6.6.避避雷雷网网格格 7.7.避避雷雷针针 8.8.均均压压环环 9.9.等等电电位位端端子子箱箱 10.10.扁扁钢钢抽抽头头 11.11.柱柱主主筋筋与与圈圈梁梁钢钢筋筋焊焊接接 12.12.防防雷雷测测试试点点13.13.接接地地跨跨接接线线16mm2电线14.14.设设备备接接地地单单位位备备注注注意计算此处产 生的铜鼻子压线目目录录名名称称规规格格计计算算式式工工程程量量(LX)(LX)单单位位备备注注目目录录名名称称规规格格计计算算式式工工程程量量(WS)(WS)单单位位备备注注目目录录名名称

17、称规规格格计计算算式式倍倍数数工工程程量量单单位位备备注注目目录录名名称称规规格格计计算算式式工工程程量量(FJ)(FJ)单单位位备备注注编编号号项项目目内内容容说说明明备备注注是是否否完完成成钢钢管管支支架架计计算算表表 （kg/米米）公称直径 （毫 米）152025324050镀锌钢管0.470.470.490.550.580.58 1303.42406.69797.27781.91332.29焊接钢管0.470.470.490.550.580.58无缝钢管0.470.470.490.550.580.58给水铸铁管排水铸铁管0.16 290.87排水塑料管0.16铜管0.190.20.21

18、0.220.230.25合合计计3611.77011.普通薄钢板厚度 (mm)宽 度 (mm) 500600710750800850900 理 论 重 量 (kg/m) (比重7.85) 0.20.7850.9421.1151.1781.2561.3351.413 0.250.9011.1801.3931.4721.5701.6881.766 0.31.1801.1431.6721.7061.8842.0022.120 0.351.3701.6501.9512.0612.1982.3352.473 0.41.5701.8842.2292.3552.5122.6692.826 0.451.770

19、2.1202.5082.6492.8263.0033.179 0.51.9602.3552.7872.9443.1403.3363.5330.552.1592.5913.0653.2383.4543.6703.886 0.62.3602.8263.3443.5333.7684.0044.239 0.72.7503.2973.9014.1214.3964.6714.946 0.752.9443.5334.1804.4164.715.0045.260 0.83.413.774.464.715.025.345.65 0.93.534.245.025.305.656.016.36 1.03.934.7

20、15.575.896.286.677.67 1.14.325.186.136.486.917.347.77 1.24.715.656.697.077.548.018.48 1.254.915.896.977.367.858.348.83 1.45.506.597.808.248.799.349.90 1.55.897.078.368.839.4210.0110.60 1.66.287.548.929.4210.0510.6811.30 1.87.078.4810.0310.6011.3012.0112.72 2.07.859.4211.1511.7812.5613.3514.13 2.28.6

21、410.3612.2612.9513.8214.6815.54 2.59.8111.7813.9314.7215.7016.6817.66 2.810.9913.1915.6116.4917.5818.6819.78 3.011.7814.1316.7217.6618.8420.0221.20 3.212.5615.0717.8418.8420.1021.3522.61 3.513.7516.4919.5120.6121.9823.3524.73 3.814.9217.9021.1822.3723.8625.3626.85 4.015.7018.8422.2923.5525.1226.6928

22、.262.圆钢规格、重量表冶标（YB）158-63 直 径 (mm)截面面 积 (cm2)理论重 量 (kg/m)直 径 (mm)截面面积 (cm2)理论重 量 (kg/m)50.19630.1544515.9012.48 5.60.24630.1934818.1014.21 60.28270.2225019.6415.42 6.30.31170.2455322.0617.32 70.38480.3025624.6319.33 80.50270.3956028.2722.19 90.63590.4996331.1724.47 100.78540.6176533.1826.05 110.9503

23、0.7467038.4830.21 121.1310.8887544.1834.68 131.3271.048050.2739.46 141.5391.218556.7544.55151.7671.399063.6249.94 162.0111.589570.8855.64 172.2701.7810078.5461.65 182.5452.0010586.5967.97 192.8352.2311095.0374.60 203.1422.47120113.1088.78 213.4642.72125122.7296.33 223.8012.98130132.73104.20 244.5243

24、.55140153.72120.84 254.9093.85150176.72138.72 265.8094.17160201.06157.83 286.1584.83170226.98178.18 307.0695.55180254.47199.76 328.0426.31190283.53222.57 349.0797.13200314.16246.62 3610.187.99210346.36271.89 3811.348.90220380.13298.40 4012.579.87240452.39355.13 4213.8510.87250490.88385.84 注 圆钢的长度规定如

25、下:A.通常长度（非定尺的）普通钢：直径25mm .长510m直径2648mm . .长49m直径50110mm . 长48m直径120mm . .长36m优质钢：各种直径 . .长26mB.定尺长度（合同中确定）C.倍尺长度（合同中确定）短尺圆钢的交货数量不得超过一批订货总量的10%。普通钢短尺不短于2.5m，优质钢短尺不短于1.5m。3.冷弯卷边角钢b-边宽；c-卷边宽；d-厚宽序 号尺 寸 （mm）截面面积 （cm2）理论重量 （kg/m ）生 产 单 位bcd 1301521.601.26天津市轧钢三厂 240151.51.531.20湖北武汉薄板厂3401522.001.57上海钢铁

26、研究所 450202.53.002.36 5301010.650.52660152.2.632.10 760152.53.252.59 8602022.882.26 960202.53.502.75 1075152.53.993.14 注 根据需方要求，经供需双方协商，可供应上表尺寸之外的冷弯边角钢。4.热轧普通槽钢（GB）707-65h-高度；b-腿宽；d-腰厚；t-平均腿厚；r-内圆弧半径；r1-腿端圆弧半径型 号尺 寸截面面 积hbdtrr1（mm）(cm2) 550374.57.07.03.506.93 6.363404.87.57.53.758.444 880435.08.08.04

27、.010.24 10100485.38.58.54.2512.74 12.6126535.59.09.04.515.69 14a140586.09.59.54.7518.51 14b140608.09.59.54.7521.31 16a160636.510.010.05.021.95 16160658.510.010.05.025.1518a180687.010.510.55.2525.69 18180709.010.510.55.2529.29 20a200737.011.011.05.528.83 20200759.011.011.05.532.83 22a220777.011.511.5

28、5.7531.84 22220799.011.511.55.7536.24 25a250787.012.012.06.034.91 25b250809.012.012.06.039.91 25c2508211.012.012.06.044.91 28a280827.512.512.56.240.02 28b280849.512.512.56.245.62 28c2808611.512.512.56.251.22 32a320888.014.014.07.048.7 32b3209010.014.014.07.055.1 32c3209212.014.014.07.061.5 36a360969

29、.016.016.08.06.89 36b3609811.016.016.08.068.09 36c36010013.016.016.08.075.29 40a40010010.518.018.09.075.05 40b40010212.518.018.09.083.05 40c40010414.518.018.09.091.05 注 （1）普通槽钢通常长度：58号长512m；1018号长519m；2040号长619m。（2）制造钢号：A3，A3F，B3F等。（3）标记举例：普通碳素钢甲类平炉3号沸腾钢180mmX68mmX7mm的热轧普通槽钢的标记为：热轧普通槽钢180x68x7-GB707

30、-65A3F-YB170-635.方钢规格、重量表冶标（YB）157-63 边长 （mm)截面面 积 (cm2)理论重 量 (kg/m)边长 （mm)截面面积 (cm2)理论重 量 (kg/m)50.250.196309.007.06 60.360.2833210.248.04 70.490.3853411.569.07 80.640.5023612.9610.17 90.810.6363814.4411.24 101.000.7854016.0012.56 111.210.954217.6413.85 121.441.134520.2515.90 131.691.334823.0418.09

31、 141.961.545025.0019.63 152.251.775328.0922.05 162.562.015631.3624.61 172.892.276036.0028.26 183.242.546339.6931.16 193.612.826542.2533.17 204.003.147049.0038.49 214.413.467556.2544.16 224.843.808064.0050.24 245.764.528572.2556.72 256.254.919081.0063.59 266.765.309590.2570.85 287.846.15100100.0078.5

32、0 注 (1) 在标准件中，边长105250毫米的方钢未列出截面面积 及重量，必要时可参照表列数据的倍数进行计算 。(2) 方钢的长度规定如下：A.通常长度（非定尺的）：普通钢：边长25mm .长510m边长2650mm . .长49m边长53110mm . 长48m边长120mm . .长36m优质钢：各种边长尺寸 .长26mB.定尺长度（合同中确定）C.倍尺长度（合同中确定）短尺方钢的交货数量不得超过一批订货总量的10%。普通钢短尺不短于2.5m，优质钢短尺不短于1.5m。6.中、厚钢板厚度 (mm)宽 度 和 长 度 (mm) 600650700710750800850 每 张 钢 板

33、的 理 论 重 量 (kg) (比重7.85) 4.521.2022.9624.7325.0826.4928.2630.03 523.5525.5127.4827.8729.4431.4033.36 5.525.9428.0630.2230.6532.3834.5436.70 628.2630.6232.9733.4435.3337.6840.04 732.9735.7233.4739.0141.2143.9646.71 837.6840.8243.9644.5947.1050.2453.38 942.3945.9249.4650.1652.9956.5260.05 1047.1051.035

34、4.9555.7458.8862.8066.73 1151.8156.1360.4561.3164.7669.0873.40 1256.5261.2365.9466.8870.6575.3680.07 1361.2366.3871.4472.4676.5481.6486.74 1465.9471.4476.9378.0382.4387.9293.42 1570.6576.5482.4383.6088.3194.20100.09 1675.3681.6487.9289.1894.20100.48106.76 1884.7891.8598.91100.32105.98118.04120.11 20

35、94.20102.05 109.90111.47117.75125.60133.45 22103.62 112.26 120.89122.62129.53138.16146.80 24113.04 122.46 131.81133.76141.30150.72160.14 25117.75 127.56 137.38139.34147.19157.00166.81 26122.46 132.67 142.87144.91153.08163.38173.49 28131.88 142.87 153.86156.06164.85175.84186.83 30141.30 153.08 164.85

36、167.21176.62188.40200.18 32150.72 163.28 175.84178.35188.40200.06213.52 34160.14 173.46 186.83189.50200.18213.52226.87 35164.85 178.59 192.32195.07206.06219.80233.54 36169.55 183.69 197.82200.65211.95226.08240.21 38178.98 193.90 208.81211.79223.73238.64253.56 40188.40 204.10 219.80222.94235.50251.20

37、266.90 42197.82 214.31 230.79234.09247.28263.72280.25 44207.24 224.51 241.78245.23259.05276.32293.5945211.95 229.61 247.28250.81264.94282.60300.26 46216.66 234.72 252.77256.38270.82288.88306.94 48226.08 244.92 263.76267.53282.60301.44320.28 50235.50 255.13 274.75278.68294.38314.00383.63 52244.92 265

38、.33 286.74289.82306.15326.66346.97 54254.34 275.54 296.73300.97317.93339.12360.32 55259.05 280.64 302.23306.54328.81345.40366.99 56263.76 285.74 307.72312.12330.70351.68373.66 58273.18 295.95 318.71323.26341.48364.24287.01 60282.60 306.15 329.70334.41358.25376.48400.357.热轧普通工字钢（GB）706-65h-高度；b-腿宽；d-

39、腰厚；t-平均腿厚；r-内圆弧半径；r1-腿端圆弧半径型 号尺 寸（mm）截面面 积 (cm2)hbdtrr1 10100684.57.66.53.314.3 12.6126745.08.473.518.1 14140805.59.17.53.821.5 16160886.09.98.04.026.1 18180946.510.78.54.330.620a2001007.011.49.04.535.5 20b2001029.011.49.04.539.5 22a2201107.512.39.54.842.0 22b2201129.512.39.54.846.4 25a2501168.01310

40、548.525b250118101310553.5 28a2801228.513.710.55.355.45 28b28012410.513.710.55.361.05 32a3201309.51511.55.867.05 32b32013211.51511.55.873.4532c32013413.51511.55.879.95 36a36013610.015.812.06.076.3 36b36013812.015.812.06.083.5 36c36014014.015.812.06.090.7 40a40014210.516.512.56.386.140b40014412.516.51

41、2.56.394.1 40c40014614.516.512.56.3102 45a45015011.518.013.56.8102 45b45015213.518.013.56.8111 45c45015415.518.013.56.812050a50015812.020.014.07.0119 50b5001.6014.020.014.07.0129 50c50016216.020.014.07.0139 56a56016612.52114.57.3135.25 56b56016814.52114.57.3146.4556c56017016.52114.57.3157.85 63a6301

42、7613.022157.5154.9 63b63017815.022157.5167.5 63c63018017.022157.5180.1 12120745.08.47.03.517.8 24a2401168.013.010.05.047.7 24b24011810.013.010.05.052.6 27a2701228.513.710.55.354.6 27b27012410.513.710.55.360.0 30a3001269.014.411.05.561.2 30b30012811.014.411.05.567.2 30c30013013.014.411.05.573.4 55a55

43、016612.521.014.57.3134 55b55016814.521.014.57.3145 55c55017016.521.014.57.3156 注 （1）工字钢的通常长度：818号工字钢519m；2063号工字钢长619m。（2）制造钢号：A3，A3F，B3F。（3）标记举例：普通碳素钢甲类平炉3号沸腾钢400mmX144mmX12.5mm的热轧普通工字钢的标记为：热轧普通工字钢400X144X12.5-GB706-65A3F-YB170-338.酸洗薄钢板和镀锌薄钢板(YB181-65) 厚度(mm)宽 度 和 长 度 (mm) 公称 尺寸允许 偏差400x800510x510

44、510x710530x760 710x710 710x1420 每 张 钢 板 的 理 论 重 量 （kg） （比重7.85)0.25 0.27 0.30 0.40 0.45 0.500.050.630.510.710.790.991.98 0.68 0.770.85 2.14 0.750.610.850.951.192.37 0.880.710.991.111.382.77 1.100.821.141.271.583.16 1.130.921.281.421.783.56 1.26 1.421.581.983.96 0.55 0.061.561.742.184.35 0.60 1.902.3

45、74.75 0.65 2.062.575.14 0.700.072.212.775.54 0.75 2.372.975.94 0.800.082.533.176.33 0.90 2.843.567.12 1.000.097.91 1.10 8.71 1.200.119.50 1.30 10.29 1.400.1210.08 1.50 11.87 1.600.1412.66 1.80 14.24 2.000.15 15.83注 钢板的宽度和长度的允许偏差为：宽度800，+6mm；长度1500，+10mm；宽度800，+10mm；长度1500，+15mm。9.水水、煤煤气气输输送送钢钢管管规规格格

46、、重重量量表表冶冶标标（YB）234-63公称内径钢 管 螺 纹外径 （mm）普通管加厚管mm(in.)壁厚 （mm）理论重量 （不计管 接头） （kg/m)壁厚 （mm）理论重 量 （不计 管接头 ） （ kg/m)61/81020.892.500.46 81/413.52.250.622.750.73 103/8172.250.822.750.97 151/221.252.751.253.251.44 203/426.752.751.633.52.01 25133.53.252.4242.91 321 1/442.253.253.1343.77 401 1/2483.53.844.254.

47、58 502603.54.884.56.16 702 1/275.53.756.644.57.88 80388.548.344.759.81 1004114410.85513.44 12551404.515.045.518.24 15061654.517.815.521.63 注（1）表列钢管是适用于输送水、煤气及采暖系统等用的钢管。分镀锌和不镀锌（黑管）两种；又分带螺纹和不带螺纹两种；按壁厚可分为普通钢管，加厚钢管和薄壁钢管。（2）钢管的长度规定为：无螺纹的黑管412m；带螺纹的黑管和镀锌管49m。每批允许有10%的（按根数计算）24m长的短尺钢管或49m米长的接管（即用一个管接头将两根钢管连接而成）。（3）经供需双方协议，可供应定尺长度或倍尺长度的钢管。其最大长度可到8m。按倍尺交货的钢管，每个单倍尺应留切口510mm。（4）钢管用易