
219*25的20G鍋爐管GB/T 5310執(zhí)行標(biāo)準(zhǔn)超高壓鍋爐無縫鋼管
| 
						57×3.5-5-6-7-8-9-10-12
					 | 
						219×6-8-12-16-18-20-25
					 | 
						620×14-20-30-35-45-50-60
					 | 
| 
						60×3.5-4.5-5-6-7-8-9-12-14
					 | 
						219×30-40-45-50-55
					 | 
						630×10-20-30-40-55
					 | 
| 
						63×3.5-4.5-5-6-7-8-9-10-12-14
					 | 
						219×55-58-60-65-70
					 | 
						640×12-25-32-40-50-65
					 | 
| 
						68×4-4.5-5-6-7-8-9-10-12-14-16
					 | 
						245×8-10-14-17-20-22
					 | 
						650×15-20-30-40-50-60-65
					 | 
| 
						70×4-4.5-5-6-7-8-9-10-12-15-16
					 | 
						245×25-28-30-34-40
					 | 
						680×20-25-35-45-65
					 | 
| 
						73×4-4.5-5-6-7-8-9-10-12-15
					 | 
						273×7-9-12-15-18-20-25
					 | 
						710×10-20-30-45-50-65
					 |