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產品描述

主要鋼種
起重臂架用管：BJ450, BJ770, BJ890
旋挖鉆桿用管：Q345B, 27SiMn, 30CrMo, 35CrMo, 42CrMo
工程機械用油缸用管：20#, 25#, 35#, 45#, 30Mn2, 27SiMn,30CrMnSiA, 30CrMoA, 20MnTiB, S700, S890, Q345, E355, E470

生產標準
起重臂架用管：GB/T 30584 《起重機臂架用無縫鋼管》
旋挖鉆桿用管：GB/T 34109 《旋挖機鉆桿用無縫鋼管》
工程機械用油缸用管：GB/T 8162 《結構用無縫鋼管》
GB/T 699 《優(yōu)質碳素結構鋼》
GB/T 3077 《合金結構鋼》
GB/T 17396 《液壓支柱用熱軋無縫鋼管》
EN10210-1 《非合金及細晶粒結構鋼熱成型結構管(空心材)》
EN10297-1 《機械和工程通用無縫環(huán)形鋼管》
EN10305-1 《精密用鋼管第一部分：無縫冷拔鋼管》

規(guī)格尺寸
小口徑精密：外徑 Φ10-180mm，壁厚 1-15mm，長度 3-12.5m
大口徑薄壁：外徑 Φ323.8-720mm，壁厚 6.35-40mm，長度6-14m

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