Ti o wa ni ilu abo ti o mọ daradara, Ningbo, China, Ningbo Yuhe Construction (Digtech) Machinery Co., Ltd.amọja ni iṣelọpọ ati tajasita awọn irinṣẹ ikopa ilẹ didara to dara julọ ati awọn ẹya orin irin biiga agbara fasteners ẹdun & nut, ṣagbe ẹdun, hex boluti, boluti orin, boluti apa, grader abẹfẹlẹ ẹdun, gige eti ẹdun, adani ẹdun, pinni ehin garawa ati titiipa, pinni ati idaduro, apo ati idaduro, garawa ehin ati ohun ti nmu badọgba, rollers orin;bakannaa miiran forging, simẹnti ati awọn ẹya ẹrọ ẹrọ diẹ sii ju 20 ọdun lọ.