尤物视频污,99热99热99超碰,精品久久久久女少妇,少妇精品无码,日B视屏久久香色,亚洲美女午夜福利av,国产美女被操,国产九九精品,国产久久色情

Ningbo Yimeng Chemical Packing Co., Ltd. is located in Cixi City, Ningbo, Zhejiang Province. The company has been committed to the development and production of various tower equipment, tower internals, structured packing tools, random packing, air separation internals, heat exchangers, and other specialized and non-standard equipment and accessories for industries such as petroleum refining, chemical engineering, air separation, pharmaceuticals, and coal chemical engineering. The company is certified under the ISO9001:2008 international quality management system. It currently offers two major series of random packing and structured packing, comprising over 100 varieties. Main materials include metals such as pure titanium, aluminum alloy, stainless steel, carbon steel, bronze, and plastics such as PVDF, CPVC, PVC, PP, PTFE, and PFA. In collaboration with Tianjin University, Shanghai Jiao Tong University, Zhejiang University, Shanghai Chemical Industry Research Institute, and the Fourth Design Institute of the Ministry of Chemical Industry, the company has developed new types of packing and has received significant assistance from experts in packing towers at domestic universities and design institutes. It now offers nearly 100 varieties across two major series of random and structured packing, which have been applied in large and medium-sized enterprises in China. Ningbo Yimeng Chemical Packing Co., Ltd.'s main products include: random packing such as Pall rings,階梯環(huán) (staircase rings),矩鞍環(huán) (saddle rings),浮球 (floating balls),海爾環(huán) (Hai'er rings),共軛環(huán) (conjugate rings),泰勒花環(huán) (Tellerettes), QH-1 flat rings,拉西環(huán) (Raschig rings), and multi-faced hollow balls. Structured packing: perforated plate corrugated packing, wire mesh corrugated packing, mesh hole corrugated packing, air separation packing, and tower internals. Sealing products: gaskets, spiral wound gaskets, metal gaskets, metal-jacketed gaskets, and PTFE envelope gaskets.