Jenụwarị 1993
Ndị isi otu ndị otu Yuantai Derun malitere ọrụ nka na Tianjin Daqiuzhuang tube factory.
June 2002
Tianjin Yuantai Industry & Trade Co., Ltd. tọrọ ntọala, ọkachamara na square, akụkụ anọ oghere ígwè anwụrụ, na-ekpo ọkụ galvanized welded (na-ekpo ọkụ itinye galvanized) square tube, ndị debanyere aha isi obodo bụ USD 10 nde.
Mee 2004
Otu n'ime ndị enyemaka Yuantai Tangshan Lituo Steel Tube Co., Ltd. e guzobere, ọkachamara na square akụkụ anọ ogologo welded oghere ígwè anwụrụ,isi obodo edebanye aha ya bụ nde USD 10.
Eprel 2005
Yuantai Steel Square Pipe Co. Ltd. e guzobere, ọkachamara na square ịgbado ọkụ oghere ígwè tube na galvanized tube, na aha bụ USD 2 nde.
Maachị 2010
Tianjin Yuantai Runxiang azụmahịa azụmahịa ụlọ ọrụ e guzobere, ipuiche na warara nchara ahia, galvanized ọkpọkọ gị n'ụlọnga, wdg, ndị debanyere aha isi obodo bụ USD 2 nde.
Maachị 2010
Tianjin Yuantai Derun pipe n'ichepụta otu Co. Ltd. e hiwere nke ọma, na-akara na mmepụta nke elu-ugboro welded nwa, galvanized square ọkpọkọ, spiral welded ọkpọkọ, ọkpọkọ lọjistik na ọkpọkọ ahia dị ka otu n'ime nnukwu ọnụ ọgụgụ nkwonkwo Enterprise Yuantai Derun otu. e hiwere nke ọma, isi obodo aha otu a bụ nde USD20.
Maachị 2010
Tianjin Yuantai Derun Investment Co., Ltd. e formally guzosie ike, ipuiche na ígwè anwụrụ ụlọ ọrụ yinye, ala ụlọ ọrụ mergers na nnweta na ulo oru ezigbo ala na ụlọ mmepe, na aha isi obodo bụ USD 2 nde.
Ọgọst 2013
Tianjin Derun Runfeng ọkpọkọ n'ichepụta Co. Ltd e guzobere, ipuiche na-ekpo ọkụ galvanized (na-ekpo ọkụ galvanizing) nhazi azụmahịa, ndị debanyere aha isi obodo bụ USD 8 nde.
Maachị 2015
Tianjin Yuantai Yuanda mgbochi corrosion mkpuchi ọkpọkọ Co., Ltd. e guzobere, ọkachamara na gburugburu welded anwụrụ mmepụta na ahịa, ndị debanyere aha isi obodo bụ USD 2 nde.
Ọgọst 2015
Tangshan Yuantai Derun Pipe Co., Ltd. e guzobere, ọkachamara na nchara warara, ígwè ọkpọkọ ahia, aha isi obodo bụ USD 1 nde.
Maachị 2016
Tianjin Yuantai Derun International Trade Co., Ltd e guzobere, tumadi aku na mba mbubata na mbupụ azụmahịa maka Yuantai Group, aha isi obodo bụ USD 2 nde.
