shandong tiansheng machinery co.,ltd ,a private enterprise specializing in development,selling and producting the agricultural machinery,is one of the drafter of the industry standard of the disc harrow and share plough in china,which is China's outstanding agricultural expert, we have self-supporte…

Shandong Tiansheng Machinery Co., Ltd , a private enterprise specializing in developing, selling and producing the agricultural machinery, is one of the drafters of the industry standard of the disc harrow and share plough in China,which is China's outstanding agricultural expert, we have self-suppo…