... BMC with steel one , Convenient for transport, security check,install , open and rush-repari to reduce work intensity.Appearance: Physical appearance ... be nice,.smooth , good elastic curve , no distort ,easy to open, the cover should not be sprayed on surface , but the ... -60 ton based on size ,complies with requirements of EN124;A15;B125;C250;C400wafery edge design,can match the cast iron frame perfect ...