Hebei Zhifeng Rubber & Plastic Products Co., Ltd. produces and sells: prestressedMetallic BellowsPre-stressedPlastic corrugated pipeBridge metal embedment pieces, rubber bearings, basin-type bearings, lead-core bearings, spherical bearings, waterstop belts, waterstop strips, expansion joints, acoustic measuring tubes, steel fibers, steel wires, clamps, guardrails, guardrail supports, rubber wheels, drainage pipes; sale of waterproof materials (excluding asphalt), geosynthetic materials, grouting materials。As required by laws and regulations, subject to approval for operation.