中文无码日韩精品_色五月激情中文在线观看_AV无码国产办公室在线看_国产一级a特黄中文对话_AV免费福利 色逼AV_久久精品性爱福利视频_2021自拍偷区亚洲综合第一页_99精品国产深喉呕吐_男人晚上狂揉美女的胸_成全视频免费在线观看

簡體中文版 English

Product List

Product overview:
The structure of the sealing center line is compact, the 90° rotary switch is easy, the sealing is reliable, the service life is long, it is widely used in water plant, power plant, steel mill, papermaking, chemical industry, food and drink system water supply and drainage, as the adjustment and cut-off use.
Product structure features:
1, the design is novel, reasonable, unique structure, light weight, quick opening and closing.
2. Small operating torque, convenient operation, labor-saving and dexterous.
3, can be installed at any location, easy maintenance.
4. The sealing parts can be replaced, and the sealing performance is reliable to achieve zero leakage of two-way sealing.
5, sealing material aging resistance, corrosion resistance, long service life and other characteristics.
Scope of use: the product can be used in chemical, petroleum, metallurgy, papermaking, pharmaceutical and other industries.
Products conform to the standards: GB/T 12238, GB/T 12221, GB/T 9113.
Mandatory
Mandatory
Mandatory
Mandatory

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