Recently, China was informed that the seamless steel pipe network.
中国无缝钢管网近日获悉。
Seamless steel pipe, experts say this "ultimatum" approach, is the demand side is very excessive.
无缝钢管专家表示，这种“最后通牒”的方式，是对需求方非常过分的要求。
Seamless steel pipe, experts say this "ultimatum" approach, is the demand side is very excessive.
无缝钢管专家表示，这种“最后通牒”的方式，是对需求方非常过分的要求。
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