2016年12月6日星期二
Domestic industry news attention:CNPC ( China National Petroleum Corporation ) is split into Natural gas sales and pipeline business
Domestic industry news attention:CNPC ( China National Petroleum Corporation ) is split into Natural gas sales and pipeline business.steel pipe inquiry kindly contact Email:kary@xinpengmetal.com or add my skype:fengling130724 or whatsapp:+86 13963577154.
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