Jinmeng has participated in several National Standards for manhole covers and Smart City and obtained Italian ICMQ, British UKAS, ISO9000, ISO14000 and other system certifications.

SMC manhole cover is a sort of composite cover, The cover shares the same loading class as the iron cover does. It is corrosion-free and eco-friendly, is considered as a replacement for iron covers for anti-thieft and safety purposes.

With the help of the natural advantages of raw materials and continuous improvement of production technology, Jinmeng composite manhole covers have good impact resistance, bending strength, high friction resistance, noise resistance, high corrosion resistance, longer service life, and lighter weight, and are easy to install. It has no recycling value due to raw material characteristics. 
At the same time, combining with the Jinmeng anti-theft lock system and waterproof & noise-reduction technology developed by the company's R&D center, Jinmeng SMC manhole cover is more technical and has better practicability and generalization which perfectly solved the traditional cast iron manhole cover’s theft problem. 

SMC material has obvious advantages in tensile resistance, bending performance and flexible structural design performance, and is currently the most ideal composite manhole cover material. Compared with BMC reinforced steel manhole cover, magnesite material manhole cover and other composite manhole cover, Jinmeng SMC manhole cover performed much better at loading test and makes the road safer.