We will continue to develop superior DI Socket Fittings with K-type Joint, Repair Clamp, Double Flanged Pipe and provide satisfactory services to all of our customers. Normative innovation is the cornerstone of our sustainable development. Normative guarantees the execution of the company, and innovation is the life source of the company. Under the condition of China's continuous economic development, our company is facing both opportunities and challenges.
Sealed Manhole Covers
Description:
Loading pressure | Frame size(mm) | Clear opening(mm) | Depth(mm) | Unit Weight(kgs) |
B125 | 750 | 750 | 50 | 34 |
C250 | 750 | 570 | 100 | 44 |
Specification:
ductile iron; turning lock; with hinge and gasket;closed key hole; different decorative pattern is available



Our company always adheres to the interests of customers as the center, and is committed to satisfying users' requirements for FDA Donjoy Aspetic Stainless Steel Pressure Manhole with Glass. We have established an energetic market service system and a quick response technical support system. After years of quality management, our sales volume and brand image have already possessed certain strength.
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