DNV steel plate is a steel plate produced according to the standards of the Det Norske Veritas (DNV), one of the world's leading classification societies that assesses, certifies and approves offshore and onshore facilities.
There are different grade for hex bolts, such as 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, etc. Among them, the hexagonal bolts of grade 8.8 and above are made of low-carbon alloy steel or medium-carbon steel. It reaches different grade after heat treatme
These valves protect the hydraulic system from excessive pressure, and can be used to maintain constant pressure in a hydraulic system. Remote control and unloading are permitted by using vent circuits.
1.The pure titanium most used2.The best combination of tensile strength, ductility, weld-ability and cold forming properties.3.Low Density and High Specification Strength4.Excellent Corrosion Resistance
ASTM A709 Grade 50W equal grade are EN10155 :S355K2G1W,NFA 35-502,E 36 WB 4 .A709 Grade 50W is the specification used for steel plate used in the manufacture of bridges.
light in weight, high in strength and long in spanroof material :EPS sandwich panel,glass fiber sandwich panel,rock wool sandwich panelhigh fire resistance and corrosion resistanceEasily to be assembled,short periodeasy to move Customized design accetaple
Ceramic ball, also known as inert alumina ceramic ball, is widely used in petroleum, chemical, fertilizer, natural gas and environmental protection industries, as a supporting material for the catalyst in the reactor and tower packing.