Standards of seamless steel pipe DIN Product Name Executive Standard Dimension (mm) Steel Code / Steel Grade Seamless Steel Tubes for Elevated Temperature DIN 17175 Ø10~762 x WT1.0~120 St35.8, St45.8, ...ดูเพิ่มเติม
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DIN 17175 St45.8 Seamless Steel Boiler Pipe Tube Polishing