13铬不锈钢管
13Cr Stainless Steel Tubing
15CrMoG无缝钢管
15CrMoG Seamless Steel Tubes
1Cr18Ni9Ti不锈钢管
1Cr18Ni9T stainless steel pipe
20#碳钢管线
20 # carbon steel pipeline
304不锈钢管
304 stainless steel pipe
304 stainless steel tubes
stainless steel pipeline
316L不锈钢管
316L stainless steel
316L stainless steel tubes
42Mn2V钢管
Material Index 42Mn2V Steel Tube
45MnMoB钢管
45MnMoB seamless steel tubes
9Cr-1Mo-V-Nb-N钢管
9Cr-1Mo-V-Nb-N steel pipe