結(jié)構(gòu)用無縫鋼管

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1、中華人民共和國國家標(biāo)準(zhǔn)結(jié)構(gòu)用無縫鋼管SeamlesssteelpipesforstructuralpurposesGB8162-87中華人民共和國冶金工業(yè)部批準(zhǔn)1987-07-02批準(zhǔn)1988-07-01實(shí)施546卞杯準(zhǔn)適用于一般結(jié)構(gòu)，機(jī)械結(jié)構(gòu)用無縫90,鋼節(jié)分為熱軋(拚壓、擴(kuò)、和冷拔(軋〕兩種熱軋(擠壓、擴(kuò))鋼管的外徑和雕P,T應(yīng)符合表!的規(guī)1尺寸、外形及皿，定，冷拔(軋)潤ilr的外徑和壁厚應(yīng)符合k<3的規(guī)定。外徑和壁厚根據(jù)需方要求‘可生產(chǎn)表1和表2規(guī)定以外的婀件鵝筑們.品種玻1外樸八電限

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5、84團(tuán)引20765.2573.7877.97821290.7名98.20106.94109.74113.19]20127-134.94“叫2氣幼70.7780.1084.6889.2298.15166.腸目115毛1119.00123.74131139.82147.57體朋2瀟57s.7s90-9558100.76Ito971209舊1氣0R0135.63】目OJIldg1590石I6合08}273'13-一日9魂295.13101.401丁3】9121.7皿136.171581右917972190.1.一299S1.石5，合39105.05IIL6612)甲3137.60150.881

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