无缝钢管规格Φ48-51*3.5-4-6-8-10-12Φ54-57*3.5-4-6-7-8-10-14Φ60-63*3.5-4-5-6-7-8-10-14Φ68-70*4-6-8-10-12-14-20Φ73-76*6-7-12-16-20Φ80-83*4.5-6-8-10-12-14-20Φ89-95*4.5-6-7-10-12-14-20Φ102-108*6-8-10-12-14-25Φ114-121*14-16-18-20-22-25Φ127-133*18-20-22-25-30-35Φ140-160*16-18-20-22-25-35Φ150-159*16-18-22-25-30-45Φ168-180*5-6-8-10-12-14-16Φ194-203*7-8-9-10-12-14-16Φ219-295*6-7-8-10-12-14Φ273-299*32-35-40-50-60-80Φ325-351*9-10-12-14-16-18Φ355-377*10-32-35-40-45-60-70Φ402-426*10-12-14-16-18-20-45Φ450-480*10-12-14-16-18-30-40-50Φ510-530*12-14-16-18-30-40-50Φ560-610*12-20-30-40-60Φ630-720*14-16-20-45-70-90Φ730-750*12-16-20-45-60
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