Our goods are commonly recognized and reliable by consumers and may satisfy continually developing economic and social needs for Chinese wholesale Large Diameter Spiral Steel Band Strengthen Pressure Bellows Municipal Drainage Pipe, Honesty is our principle, expert operation is our perform, support is our goal, and customers’ fulfillment is our future!
Our goods are commonly recognized and reliable by consumers and may satisfy continually developing economic and social needs for China Corrugated Pipe and Steel Band Pipe, With the aim of “compete with good quality and develop with creativity” and the service principle of “take customers’ demand as orientation”, we are going to earnestly present qualified products and good service for domestic and international customers.
METAL COLLAR
Complete quality control conform to ISO9001 system in each manufacture detail to ensure DS SML cast iron pipe  coupling quality to Enropean standard EN877, DIN19522.
Size: DN40-200
Stainless steel SUS304, SUS316L

BOLT AND SCREW

Material: Galvanized steel , Stainless steel
Screw size: M6 , M8
Torque: DN50-80:  6-8Nm, DN100-200: 10-12Nm

FACILITY

Founded in 2007, our facoty has been equiped with domestic famous facility and skillful workers to response the quick market and enviromental requirement.

RUBBER GASKET

Gasket: EPDM, NBR,
Axial pressure: 0.5bar.
OEM is welcome service