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  2. 日韩v亚洲ⅴ欧美v精品综合_中文字幕在亚洲第一在线_天天摸夜夜添狠狠添高潮出水_精品无码av一二三一区日韩专区

    JINGHONG

    Carbon steel round tube

    Carbon steel pipe, carbon welded pipe, carbon seamless steel pipe, API steel pipe using hot rolled steel pipe billet to make heating and piercing, elongating, sizing and straightening, cooling, finally hollow bars finished, this is the type most commonly used. Because it is hot rolled, so cost is lowest, but it is suit for large quantity, for small quantity, have to make cold drawn or round bar piercing. size: outer diameter?32mm- 499mm, wall thickness?4mm- 80mm

    Stainless Steel Pipe

    Stainless steel pipe is a kind of hollow long round/square steel, stainless steel pipe is divided into seamless steel pipe and welded steel pipe.mainly used in petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and other industrial pipeline and mechanical structure parts.In addition, in bending, torsional strength at the same time, relatively light weight, so also widely used in the manufacture of mechanical parts and engineering structures..It is also commonly used in the production of various conventional weapons, barrels, shells etc.

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    日韩v亚洲ⅴ欧美v精品综合_中文字幕在亚洲第一在线_天天摸夜夜添狠狠添高潮出水_精品无码av一二三一区日韩专区
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