<p>（1）规格：螺旋钢管的规格要求应在进出口贸易合同中列明。一般应包括标准的牌号（种类代号 ）、钢筋的公称直径、公称重量（质量）、规定长度及上述指标的允差值等各项。我国标准推荐公称直径为8、10、12、16、20、40mm的螺旋钢管系列。供货长度分定尺和倍尺二种。我国出口螺纹钢定尺选择范围为6～12m，日本产螺纹钢定尺选择范围为3.5～10m。 　　（2）外观质量：①表面质量。有关标准中对螺纹钢的表面质量作了规定，要求端头应切得平 直，表面不得有裂缝、结疤和折迭，不得存在使用上有害的缺陷等；②外形尺寸偏差允许值 。螺纹钢的弯曲度及钢筋几何形状的要求在有关标准中作了规定。如我国标准规定，直条钢筋的弯曲度不大于6mm/m，总弯曲度不大于钢筋总长度的0.6%。</p> <p>焊管 焊管 4寸 Q235 友发 济南 4230 0&nbsp; 12-05-31 <br /> 焊管 焊管 2.5寸 Q235 衡水 济南 4230 0&nbsp; 12-05-31 <br /> 焊管 焊管 2.5寸 Q235 友发 济南 4230 0&nbsp; 12-05-31 <br /> 焊管 焊管 1.5寸 Q235 衡水 济南 4280 0&nbsp; 12-05-31 <br /> 焊管 焊管 1.5寸 Q235 友发 济南 4280 0&nbsp; 12-05-31 </p> <p>我公司代理经营的产品全部正品出售-主营厂家/产品有：成都钢铁集团、冶钢集团、包头钢厂、宝钢集团、鞍钢集团、天津大无缝、西宁特钢厂、无锡钢厂、衡阳钢厂、莱钢、日钢、包钢、鞍钢、武钢各种规格、角钢、槽钢、<a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tgbuxiugang.com/">太钢不锈钢管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tgbuxiugang.com/">太钢不锈钢板</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tgbuxiugang.com/">太钢不锈钢板厂</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjhfzyg.com/">20#化肥专用管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjhfzyg.com/">15CrMo化肥专用管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjhfzyg.com/">16Mn化肥专用管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.sylhgw.com/">20#石油裂化管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、</span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.sylhgw.com/">15CrMo石油裂化管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjgxgw.com/">L245NB管线管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjgxgw.com/">L360NB管线管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.tjgxgw.com/">L290管线管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.q345xg.com/">Q345B槽钢</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.q345xg.com/">Q345BH型钢</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.q345xg.com/">Q235工字钢</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、<span class="Apple-converted-space">&nbsp;</span></span><a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.q345xg.com/">无缝方矩管</a><span style="display:inline! important;float:none;word-spacing:0px;font:medium Simsun;text-transform:none;color:#000000;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;">、</span> H 型钢、板材等钢材高压锅炉管、中低压锅炉管；石油裂化管、化肥专用管、液压支架管、医疗精密管、军工机械、液压支柱、锅炉仪表、装饰、建筑等行业用大小口径及特殊材质、特殊规格、特殊用途、薄厚壁无缝管及各种国产、进口合金管。</p> <p>材质为10#、20#、35#、45#、27SiMn、16Mn、15CrMo、35CrMo、12CrM</p> <p>常备材质：10#、20#、45#、16Mn、27SiMn、12Cr1MoVG、15CrMoG、10CrMo910、Cr5Mo、35CrMo、A335P11、P22钢研102、T91、P91、WB36等。</p>