Siad Industry Gas Engineering (Hangzhou) Co., Ltd. is located in Hangzhou, China. It's a foreign-owned enterprise professionally engaged in R & D, design, manufacture and sales of industrial gas separation plants, related instruments and devices, which provides relevant technical advice, technical service, and after-sales service.

In product design and manufacturing process, Siad has absorbed the full range of advanced technology and experience of civil air separation from original Hangzhou Cando Air Separation Plant Co., Ltd, innovating and optimizing with the international advanced technology. Now we have the capacity to produce professional complete sets and manufacture various kinds of full range standard (non-standard) small and medium-sized gas, liquid and liquefaction plants.

Siad persists in the principle of surviving through quality, creating benefits through sustainable management, development through science and technology, and reputation through good service. According to the requirements of ISO9001 quality system standard, we have established effective quality system and feasible quality manual, which are firmly implemented. Over the past ten years, we have made successful performances all over the world and have obtained the recognition of users. Our products are widely marketed throughout more than 30 provinces and autonomous regions, and also exported to dozens of countries including Vietnam, Kazakhstan, Bangladesh, Iraq, Egypt, Cambodia, Angola, Philippines, Pakistan, Venezuela, etc.

Our aim is to be the world's most professional designer and manufacturer of small and medium-sized air separation plants.