China structure pipe black round pipes

{"pid":"42350745","cid":"321654","pimg_url":"\/\/img1.b2bforus.com\/bb\/0f\/265575477862\/product\/165642396_s-w400xh400.jpg","name":"S235jr S265jr S275jr S335jr S355jr S555 SA 214 Tubos redondos de a\u00e7o sem costura de a\u00e7o carbono Tubos e tubos pretos para estruturas Tubos de \u00f3leo Tubos de caldeira Tubos pre\u00e7o","company_name":"SHANDONG ZHENGDEMETAL MANUFACTURING CO.,LTD.","attrs":{"Pre\u00e7o":"negoiate","MOQ":"Negotiable","Prazo de entrega":"10days","Marca":"Zhengde"}}

{"pid":"50552850","cid":"369886","pimg_url":"\/\/img1.b2bforus.com\/eb\/51\/eab3c789f008\/product\/196829521_s-w400xh400.jpg","name":"Forma de sec\u00e7\u00e3o redonda 31.1mm Tubo sem costura e \u00f3leo Astm A53 A106 ms Tubo de a\u00e7o preto sem costura para estrutura de constru\u00e7\u00e3o","company_name":"Shandong Zhongyu Weiye Trading Co., Ltd","attrs":{"Pre\u00e7o":"$485.00\/tons 1-49 tons","MOQ":"Negotiable","Prazo de entrega":"15-21 days","Marca":"zhongyu"}}

{"pid":"50599655","cid":"369982","pimg_url":"\/\/img1.b2bforus.com\/45\/b8\/37dc9a3326ca\/product\/197021718_s-w400xh400.jpg","name":"6 polegadas ASTM A53 Gr.b ERW Tubos soldados redondos negros de a\u00e7o carbono com estrutura t\u00e9cnica de grau X80","company_name":"Shandong Zhongsheng Materials Co., Ltd.","attrs":{"Pre\u00e7o":"$550.00\/tons 100-499 tons","MOQ":"1 Ton","Prazo de entrega":"within 7 days","Marca":"Zhongsheng"}}

{"pid":"44940601","cid":"5300","pimg_url":"\/\/img1.b2bforus.com\/92\/17\/ac6e289f93ea\/product\/171376153_s-w400xh400.jpg","name":"Tubos de a\u00e7o carbono redondo e resistente \u00e0 tra\u00e7\u00e3o SCH 10 a SCH XXS pintados de preto para estruturas resistentes","company_name":"TOBO STEEL GROUP CHINA","attrs":{"Pre\u00e7o":"Negotiable","MOQ":"Negotiable","Prazo de entrega":"Negotiable","Marca":"TOBO"}}