Built in 1990s, Changzhou Shengtak(STK) Seamless Steel Tube Co., Ltd. is a Sino-Hong Kong joint venture and a hi-tech enterprise specialized in manufacturing various kinds of seamless carbon steel, alloy steel, and stainless steel tubes.

With an annual output of 72000MT seamless steel tubes from 6mm-159mm,STK's products are classified as 3 types:

1. Rifled seamless tube of boiler tube material like SA210 A1,SA210 C,T1,T2,T5,T9,T11,T12,T22,T23,T91,T92 etc. These tubes are all supplied to our domestic large-scale boiler manufacturer like Shanghai Boiler Co.,Ltd, Dongfang Boiler Group Co.,Ltd,Harbin Boiler Company Limited.

2. Seamless alloy steel and stainless steel tubes of T1,T2,T22,T23,T91,T92, TP304,TP316L,TP321 and equivalent standardsmaterial. These tubes are all supplied to Sinopec,CNPC,CNOOC.

3. Precision seamless stee tubes for auto-industry. These tubes are all supplied to domestic state-owned automotive factories like DFAW,FAW.

STK has successfully acted as an manufacturer and supplier of high-level seamless steel tubes in the past 3 years.

With systematic production equipment,inspection device,international qualification certificates, and continously introduction of advanced equipmentdevice in the year 2011, STK is now ready to step into the overseas market and work as a partner for overseas customers in pressure-vessel industry, petroleum cracking industry and automotive industry.