凸面板式平焊钢制管法兰的英文

slip-on welding plate steel pipe flanges with raised face for pn 6mpa

• 凸面:    convex surface; cr ...
• 板式:    plate-type; type o ...
• 平:    flat; level; even; ...
• 焊:    weld; solder
• 钢:    sharpen; strop; wh ...
• 制管:    tubulation
• 法兰:    flange