China standard size of hollow blocks

{"pid":"13812343","cid":"39372","pimg_url":"\/\/img1.tradegrowthhub.com\/38\/6f\/bb454f872aef\/product\/33748023_s-w400xh400.jpg","name":"Victor Hollow Tungsten Steel Plate, Tungsten Carbide Block Size Non-Standard Customization","company_name":"Zhuzhou Weikeduo Cemented Carbide Co., Ltd.","attrs":{"Price":"Negotiable","MOQ":"negotiate","Delivery Time":"15-20 working days","Brand":"VKD"}}