爱妺妺国产AV网站_中日韩欧无码免费视频_惠民福利亚洲乱码在线无码av_亚洲AV美女网站_国产羞羞一区免费看_国产成人精品播放在线_中文字幕一级黄片子在线视频_制服丝袜国产精品主区_日本一道免费在线观看_了解最新亚洲强奸视频

Professional Longitudinal Submerged Arc Welded (LSAW) Steel Pipe Manufacturer

The company's products are widely used in offshore wind power, marine engineering, oil and gas pipeline, petroleum refining and chemical engineering, as well as water conservancy, electric power, construction project and so on.

Ziking, with its complete quality and HSE management systems, connecting with National standards, American standards, European standards and Australian standards etc, orientated to serving famous enterprises for oil and gas and offshore wind power resources on development and operations both domestically and overseas, becomes a professional and trustworthy subcontractor of well-known engineering contracting companies in the domestic and international energy field.