久久99精品国产麻豆不卡_无码国产精品一区二区免费16_国产成人久久精品一区二区三区_亚洲一区二区三区中文字幕在线

Yancheng RongTai Petroleum Machinery Co., Ltd. is China petroleum, petrochemical material equipment two (Group) Corporation network member units. The company's main series of flat valve, slurry valve, oil (gas) wellhead, choke and kill manifolds, downhole tools, drilling accessories, pump parts and all kinds of mechanical products, company is located in the high tech Industry Park of Jiangsu Jianhu County China Aviation Road No. 066, Yancheng RongTai Petroleum Machinery Co., Ltd. in line with "the customer first, integrity is supreme" the principle, has established the long-term cooperation with many enterprises. Warmly welcome friends come to visit, study, business negotiations.