日韩骚色网站,中文无码HD人妻上司侵犯,波多野结衣黄色无码视频观看,亚洲精品久se

HPVC-double wall corrugated pipe

The High Strength Double Wall corrugated pipe has a hollow ring structure between the inner and outer walls, making full use of the principle of I steel structure to improve the Cross section, the moment of inertia and the ring steel degree. The product has the strength high, the toughness is good, the texture light and so on merit. The products can replace MPP single-wall corrugated pipes, glass steel pipes, PVC-C power pipes, PVC-U communication pipes and other pipes.

092514_187.jpg


Product performance

2222.jpg


Specification type:

3-1111.jpg

4-111.jpg

4-1111.jpg


?
為您報價