This high quality emergency vehicle light bar with special technology design, waterproof, dustproof, seismic design can adapt to the various environment. Built-in the reverse polarity protection circuit, it can protect installation wiring and vehicle elec
Concave surface FRP grating is a structure panel which uses high-strength E-glass roving as reinforced material, thermosetting resin as matrix and then casted and formed in a special metal mold.
image001Ferrite magnet isalso called a ceramic magnet, which is a ceramic material made by mixing and firing large proportions iron(III) oxide (Fe2O3, rust) blended with small proportions of one or more additional metallic elements, such as barium, mangan
ASTM A312 is the main standard for stainless pipe, also have ASTM A358, ASTM A213, ASTM A269, ASTM A249, ASTM A270, ASTM A511, ASTM A789, ASTM A790, ASTM A928, JIS G3459, JIS G3446, JIS G3448, JIS G3463, EN10216-5, EN10217-7, DIN 17455, DIN17456, DIN17457