大庆油田 2-7/8 平式油管接箍 N80接箍 厂家现货直供大型油田

2-7/8平式油管接箍N80。2-7/8平式油管接箍N80
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2-7/8平式油管接箍N80
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2-7/8平式油管接箍P110
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2-7/8加厚油管接箍P110
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2-7/8平式油管接箍J55
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2-7/8加厚油管接箍J55
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4-1/2加厚油管接箍J55