欧美日韩成人在线影院_亚洲免费在线观看中文字幕_麻豆福利夜间视频_成人免费看片又大_中文字幕欧美手机精品_青青在线看片_久久天天躁日日躁狠狠躁_国产一级黄片一区二区三区_撕开奶罩疯狂揉吮奶头_啊快舒服亚洲视频

簡(jiǎn)體中文版 English

Product List

Eccentric spherical cock is the company introduced the latest international design concept and independent development of new products and technology with independent property rights. The valve adopts the half spherical structure, sedimentary particles can effectively remove the medium. Eccentric structure makes the valve open seat away from the ball valve speed and in the process of extending the service life of the seal. And the sealing surface spraying nickel alloy wear-resisting, increase service life. Apply to power plant, metallurgy, cement, paper and other industries in the pulverized coal conveying pipeline, ash, paper and other materials.

Mandatory
Mandatory
Mandatory
Mandatory

Be sure to write clearly consulted or purchase products detailed parameters and quantity.