Are you concerned about the quality and safety performance of road manhole covers? Our company has established a standardized SMC manhole cover pressure testing procedure based on European standards ( EN124-1:2015 & EN124-5:2015)、 Australian standards (AS3996:2019) and American standards(ASTM A48 & A48M-03a). This is aimed at evaluating the safety performance of manhole covers under extreme heavy pressure conditions, providing every customer with visible safety assurance.