电镀绗磨管
(内表面绗磨，外表面电镀)
(1) 钢号: St52, CK45, 4140, 16Mn, 20#, 40Cr, 不锈钢等。
(2) 内径: 20-460 mm     
(3) 外径: 30-500mm
(4) 长度: 最长13m
(5) 直线度: 0.2~0.4 /1000
(6) 标准公差: DIN 2391, ISO H8
(7) 粗糙度(Ra): 0.2 to 0.4µ
(8) 镀层厚度: 20~ 50 微米
(9) 工艺：冷拔，绗磨，电镀
(10) 包装：内外表面涂油防锈，两端加端盖，纸管或气泡膜保护，木箱包装。








ID(mm) Tolerance(mm)
H7 H8 H9 H10
≦30 +0.021/0 +0.033/0 +0.052/0 +0.084/0
30 - ≦50 +0.025/0 +0.039/0 +0.062/0 +0.100/0
50 - ≦80 +0.030/0 +0.046/0 +0.074/0 +0.120/0
80 - ≦120 +0.035/0 +0.054/0 +0.087/0 +0.140/0
120 - ≦180 +0.040/0 +0.063/0 +0.100/0 +0.160/0
180 - ≦250 +0.046/0 +0.072/0 +0.115/0 +0.185/0
250 - ≦315 +0.052/0 +0.081/0 +0.130/0 +0.210/0
315 - ≦700 +0.057/0 +0.089/0 +0.140/0 +0.230/0