China standard size of hollow blocks

{"pid":"13812343","cid":"39372","pimg_url":"\/\/img1.tradegrowthhub.com\/38\/6f\/bb454f872aef\/product\/33748023_s-w400xh400.jpg","name":"Placa de acero de tungsteno del hueco del vencedor, arreglo para requisitos particulares no est\u00e1ndar del tama\u00f1o de bloque del carburo de tungsteno","company_name":"Zhuzhou Weikeduo Cemented Carbide Co., Ltd.","attrs":{"Precio":"Negotiable","MOQ":"negotiate","El tiempo de entrega":"15-20 working days","Marca":"VKD"}}