... bearing 6000N of static tension, still can use normallyFlexibility :1.lock open is agile, when the lock put out, the static tension≤ ... more than 0.8 um; Sand light' surface roughness Ra is not more than 6.3 um: machined parts' surface ... model number, trademark, product adopt standard number, detailed address. 4.the origin of product, quantity, volume, brand label, Anti-counterfeiting code Numbers and ...