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Shandong Dongbao Steel Pipe Co., Ltd

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/manufacture100/dongbao/product4/

petroleum pipe

petroleum pipe (4)

/manufacture100/dongbao/product1/

oil tubing

oil tubing (1)

/manufacture100/dongbao/product5/

petroluem casing

petroluem casing (5)

/manufacture100/dongbao/product2/

oil casing

oil casing (2)

/manufacture100/dongbao/product3/

drilling pipe

drilling pipe (3)

1