Founded in 1992, Zhangjiagang City Siweida Machinery Co., Ltd. specializes in manufacturing plastic machinery & equipment.

Since the early 1990s, our company has developed plastic machinery with over 100 specifications, mainly including corrugated pipe process lines, large-caliber PVC draining & sewage discharging process lines, PE large-caliber gas pipes, water supply & drainage pipe process lines, granulating process lines, club pipe process lines, PP-R pipe process lines, one-model-two-output pipe process lines as well as 250T, 180T all type tube/pipe process lines, plastic extruding machines, high-speed mixers and mixing units, and various plastic auxiliary machinery.

"Credit first and customer first" is our perpetual commitment. We believe that perfect service is more important than sale. Our policy is to actively adapt to market, seek new customers while keeping old ones, and devote ourselves to consumer guiding while wholeheartedly serving users. We always do our best to achieve synchronized increase in company's benefits and social value, and establish a marketing and service network covering the whole country.