You can contact Guilin HongCheng Mining Equipment Manufacture Co., Ltd. (HCM) head-office directly, also you can contact the oversea-offices which is close to you. Of course, free live-chat is available and you can get help immediately.   

Head office address   

TEL: 0773-3568321  
FAX: 0773-3568987   
Office Add: Yangtang Shanshui Industrial Park, Xicheng Economic Development Zone, Guilin City, Guangxi Province, China 
Postcode: 541199    
Email: mkt@hcmilling.com