18911618789
12Cr1MoV承插焊弯头
DN40-1-1/2-48.3-45承插焊···
XS承插焊弯头
00Cr19Ni10螺纹弯头
15CrMo螺纹弯头
DN32-1-1/4-42.2-38螺纹弯···
Sch80螺纹弯头
022Cr19Ni10承插焊弯头
15CrMo承插焊弯头
DN32-1-1/4-42.2-38承插焊···
Sch80承插焊弯头
S90E承插焊弯头
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