疏浚工程用带法兰的Asmeb31.3 SSAW管钢管API焊接碳螺旋钢管1cr17
US$564.00 - US$672.00
Shipping to be negotiated
Min. Order: 5 tons
低碳大直径Q345b螺旋焊接钢管
US$587.00 - US$672.00
Shipping to be negotiated
Min. Order: 5 tons
水井套管用SSAW焊接钢管API流体管低压ERW螺旋钢管
US$587.00 - US$672.00
Shipping to be negotiated
Min. Order: 5 tons
ERW技术制造的500毫米直径螺旋焊接碳钢管圆段热轧表面6m长
US$585.00 - US$705.00
Shipping to be negotiated
Min. Order: 5 tons
热轧聚氨酯涂层螺旋钢管12m圆形聚氯乙烯塑料带肋结构应用GS认证
US$523.00 - US$612.00
Shipping to be negotiated
Min. Order: 5 tons
大口径Q235螺旋钢管防腐焊接钢管厂家库存供污水焊接铁管
US$602.00 - US$699.00
Shipping to be negotiated
Min. Order: 5 tons
SSAW螺旋焊接钢管6m至12m长圆形结构管油气管道热轧ERW技术碳焊
US$615.00 - US$685.00
Shipping to be negotiated
Min. Order: 5 tons
AWWA C200螺旋焊接碳钢管500毫米直径圆形截面ERW SSAW防腐水钢管技术
US$599.00 - US$668.00
Shipping to be negotiated
Min. Order: 5 tons

美国材料试验学会A106美国石油学会规范5L X42 X52 X56 X60 X65 Gr.b s355j2黑色无缝管pls2 pls1油气管道碳钢管线管
US$520.00 - US$650.00
Shipping to be negotiated
Min. Order: 1 tons
20 #40 # C15 Q235b L无缝圆管网格供应商，由中诺钢6毫米厚度套管油结构附表40 80
US$510.00 - US$640.00
Shipping to be negotiated
Min. Order: 5 tons
无缝钢管油套管K55 J55 P110 N80 J80 L80 H80 psl1 psl2石油管道octg api 5ct Gr.b油焊管
US$550.00 - US$650.00
Shipping to be negotiated
Min. Order: 5 tons
API认证42crmo无缝钢管A335p5合金镍925涂层圆管热轧冷轧表面4130级
US$525.00 - US$650.00
Shipping to be negotiated
Min. Order: 5 tons
S355J2 Sch40碳钢无缝管热轧冷轧级4130圆形带弯曲焊接切割服务
US$515.00 - US$745.00
Shipping to be negotiated
Min. Order: 5 tons
无缝碳管12英寸无缝钢管价格无缝管q345d
US$523.00 - US$702.00
Shipping to be negotiated
Min. Order: 5 tons
美国石油学会认证的6m圆形无缝钢管球墨焊接碳铁钻油管道可用各种厚度
US$510.00 - US$620.00
Shipping to be negotiated
Min. Order: 5 tons
高质量圆形碳钢管美国材料试验学会A53 A106美国石油学会5L G R.B 6m长钻杆JIS证书价格合理
US$520.00 - US$635.00
Shipping to be negotiated
Min. Order: 5 tons