a天堂在线资源-亚洲国产精品嫩草影院久久-女色网站-我想看黄色小说-男人鸡鸡捅女人鸡鸡-麻豆视频污在线观看-国产清纯白嫩初高生在线观看91-亚洲成a人v欧美综合在线-亚洲午夜免费视频,国产精品亚洲五月天高清,亚洲av噜噜狠狠网址蜜桃动漫 ,国产亚洲??久一区二区 国产?在线观看免费视频

Shandong Molong Petroleum Machinery Co., Ltd is a listed company specialized in R&D, manufacturing, sales & service and import and export of petroleum machinery.As one of the top four suppliers of CNPC for Category I material and qualified suppliers of CNPC, SINOPEC, CNOOC and Shaan’xi Yanchang, the company is mainly manufacturing tubing, casing, line pipe, sucker rod, subsurface sucker rod pump, pumping unit, electric submersible pump, topping-up pump and various downhole tools. The company was founded in 1986 originally and started business of petroleum machinery in 1987. Shandong Molong Group Co was organized In 1994.Shandong Molong Petroleum Machinery Co., Ltd was founded in 2001 by approval of People’s Government of Shandong Province. Being listed in GEM(Growth Enterprise Market) of Hong Kong Stock Exchange on April 15th 2004, Shandong Molong Petroleum Machinery Co., Ltd became the first company listed outside mainland among the private companies in Weifang and the domestic companies in the same business.

More>>