91S beam beam factory 107 manufacturers scraper Benniu | Shandong Mining Machinery manufacturers lowest wholesale price 91S beam 107 beams, 11GL3-2 beam, 150S0117-3 beam, 10GL3-2 beam, 111S dumbbell pins, 54SA14-2 dumbbell pin card block Model: ZX-02 card block, 171S99 / 01-2 card block, 154S97 / 0106-2 card block, 107SA card block, 63S-04 card block, 66S-10 card block, 121S06 / 02-4 card block, 121S03 / 01-2 card block, 32S07 / 02-2 card block, 150S01-2 card ?? ordinary block and have reamed hole with. Force major general carry axial and transverse force can carry less demanding. Articulation hole bolt hole size and fit to be used at the time by the lateral force. Accordance with the relevant standards, performance rating 3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9 bolt more than 10 levels, including 8.8 and above bolt material is carbon steel or carbon steel and heat treatment (quenching and tempering), commonly known as high strength bolts, and the rest is known as ordinary bolts. Bolt performance rating label has two parts numbers, respectively, said male bolt material tensile strength and yield strength ratio. For example: Performance Level 4.6 of bolts, a bolt material nominal tensile strength up to 400MPa grade;