20号无缝管89mm-426mm流体管 8163流体管

89*4-4.5-5-5.5-6-6.5-7-7.5-8-9-10-11-12-12.5.-13-14

95*4-4.5-5-5.5-6-7-8-9-10-11-12.5-14-16

102*4-4.5-5-5.5 -6-7-8-9-12

108*4-4.5-5-5.5-6-6.5-7-8-9-10-11-12-12.5-14-16-20

114*4.5-5-5.5-6-7-8-9-10-11-12.5-13-14-15-16

121*4-4.5-5-5.5-6-7-8-8.8-10-11-12.5-14.2-16-18-20

127*4.5-5-5.5-6-7-7.5-8-9-10-11-12.5-14-16-18-20

133*4.5-5-5.5-6-7-8-9-10-11-12.5-14-16-18-20

140*5-6-7-8-10-12-14-16-18-20

159*4.5-5-5.5-6-7-8-9-10-12-12.5-14-16

168*5.5-6-6.5-7-8-9-9.5-10-11-12-13-14-16-18-19-20

219*6-6.5-7-8-9-10-11-12-13-14-15-16-17-18

273*6.5-7-8-9-9.5-10-11-12-13-14-15-16-18-20

325*7-8-8.5-9-10-11-12-13-14-15-16-17-18-20

356*8-9-9.5-10-11-12-13-14-15-16-18-19

377*8-9-9.5-10-11-12-13-14-15-16-18-20

406*8-9-9.5-10-11-12-13-14-16-17-18

426*8-9-9.5-10-11-12-13-14-15-16-17-18

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