99国产亚洲精品久久久久久,女人夜夜春高潮爽A∨片传媒,亚洲av无码日韩av无码网址

暖暖免费日本高清在线,激情综合色五月丁香六月,百合AV肉片无码资源无码,免费看含羞草AV片成人网站

Home | Collection | Contact us

The company has eleven sets of spiral welded steel pipe production unit with international modern levels and a set of production line of modern 3-layer PE Anti-corrosion coatings. The outer diameter(OD) of spiral welded pipe from Φ219mm to Φ3600mm, the wall thickness of spiral welded pipe from 6mm to 25mm, steel grade from A25-X80.

Detailed content

Our company invite Medical Center doctor to carry out health examination for all employees.

Every year, our company invite medical center doctors who take along advanced euqipment to carry out health examination for all employees and pay for all the costs which embody company leaders care for employees.

Video

暖暖 免费 日本 高清 在线,激情综合色五月丁香六月,百合AV肉片无码资源无码,免费看含羞草AV片成人网站

暖暖免费日本高清在线,激情综合色五月丁香六月,百合AV肉片无码资源无码,免费看含羞草AV片成人网站