国产精品久久久久久亚洲毛片,97起碰人妻免费观看,金八天国无码专区AV,刺激图片小说网站

QUALIFICATION DOCUMENTS
Adhering To The To Science And Technology As The Guide, Seek Levelopment By Innovation, Strives For The Survival By The Quality

ASTM A870 WPHY 70 Elbows

  • Categories:Product Information
  • Author:Zhongran
  • Source:Hebei Zhongran Pipeline Co., Ltd.
  • Updated:2020-09-12
  • Views:702

【Summary Description】ASTM A870 WPHY 70 Elbows are specialized designed for the high-pressure oil&ga

ASTM A870 WPHY 70 Elbows

【概要描述】 ASTM A870 WPHY 70 Elbows are specialized designed for the high-pressure oil&ga

  • Categories:Product Information
  • Author:Zhongran
  • Source:Hebei Zhongran Pipeline Co., Ltd.
  • Updated:2020-09-12
  • Views:702
Details
ASTM A870 WPHY 70 Elbows are specialized designed for the high-pressure oil&gas pipelines which play an important role in the safe pipe connection when the medium flow change the directions.

WPHY 70 elbows have optimized its excellent mechanical property due to the chemical composition alteration to enhance the solution strengthening by adding the Mn element equivalent and accordingly lowing the C,P and S elements proportion.

Hebei Zhongran Pipe-fitting Co., Ltd.has many years of experience in the production of
 
Butt-weld fittings especially for the line-pipe material fittings such as WPHY 60/70/80 elbows,tees,reducers and bends,which have been applied for many oil/gas pipelines.
 

掃二維碼用手機(jī)看

中燃管道

Hebei Zhongran Pipefitting Co., Ltd.

Copyright:Hebei Zhongran Pipefitting Co., Ltd.       

中文字幕久久久久一区| 日韩视频第一页| 久久成人18免费国产精品网站 | 欧美精品黑人| 羞羞麻豆国产精品1区2区3区| 国产精品国产三级在线| 日韩电影久久久被窝网| 亚洲福利在线一区少妇| 韩国91视频vip| 欧美乱视频| 84PAO国产成视频永久免费| 日韩一区二区三区四区| 一区二区三区蜜臀色欲av| 人人妻人人爽人妻AV| 免费高清AV一区二区三区| 久久,免费视频网站丶| 六月婷综合在线| 中年人妻丰满AV无码久久不卡| 国产成人Av免费一区二区日韩| 国产精品无码V在线观看| 亚洲国产综合欧美| 色AV一区二区三区| A级成人免费毛片视频| AAA国产乱| 熟女视频精品店| 国产精品第45页| cao超碰97| 国产亚洲AV日韩AⅤ精品一区| 久久久精视频| 亚洲性自拍| 777久久久精品一区二区| 国产精品久久性色AV| 亚洲人成网站色ww| 精品中文字幕在线播放| 五月综合久久丁香五月| 久久久久久亚洲av成人无码国产| 青操精品在线观看| 思思久久96热在精品国产高清| 欧美国产综合久久香| 777777 日本| 国产乱码精品一区二区三|