悠悠AV,少归久久久久久,懂色一区二区三区在线播放,91精品久久人妻无码人妻

en中文Pусский Holding subsidiaries

High and medium pressure valves Location:Home > Product>Complete equipment>High and medium pressure valves

Total 653 all-welded ball valves have been delivered in 2009 for ground works in A block of contract area in Bagtiyarlyk, Turkmenistan, of which quality and performance is highly praised by the users. In addition, over 800 heavy caliber all-welded ball valves has been supplied to Puguang in West-east natural gas transmission line 1, 2, 3 and Shanxi-Beijing communication line (See Table of Operating Performance) in domestic market; in overseas market, 156 56" ball valves has been sold, whose running conditions are great; there are plenty of operating performance by executing agency of Cameron all-welded ball valve and Ledeen gas-liquid linkage and commendatory letters from users reflecting that they enjoy great performance with over 30-year failure-free operation on numerous large pipelines all over the world. At present, the longest operating performance of ball valves in use is over 60 years while over 40 years in China.

 

 閥門結(jié)構(gòu)

 

 

使用現(xiàn)場

 

 

 

 

北京三川世紀(jì)能源科技股份公司所有/京ICP備10215013/京公網(wǎng)安備110102004747    網(wǎng)站建設(shè):百川互動(dòng)

Profile | Job | Contact Us

国产精品日日av| 日韩Av中文综合| 天堂在线最新资源地址| 港台三级片丝袜| 亚洲在线毛片| 农村精品一区二区| 人妻色色婷婷| 亚洲有码网址| 精品国产一区二区无码| 亚洲国产中文日韩欧美综合网 | 亚洲AV综合AV一区红太狼| 日本久久久在线观看| 亚洲 图 日韩欧美视频| 超碰Cao Porn色色| 啪啪啪大亚洲| 菊花综合网站欧美的视频同涩| 亚洲图区一区二区三区图片图片图片 | 大香蕉十八| 欧美日韩在线永久| 欧美激情一区亚洲| 欧美成人免费网址| 国产午夜精品一区| AV天天干天天色| 久久久国外性| 日本免费播放一区二区三区视频| 久久韩国精品视频| 加勒比久久久久久综合| 欧美国产精品一区亚洲日韩| 日本深夜福利网| 日本私人影院99国产精品| 国语1区2区| 中文字幕无码一区二区| 福利度试看3分钟| 日韩一级一区二区毛片| 欧美日韩中文字幕综合网| 倝国男男男性爱另类视频| 欧美一区二区麻豆成人| 欧美日韩大胆一级视频| 欧美色综合久| 欧美黄色电影一区二区| 麻豆成人a v|