01 Q235 HDG klas 4.8 8,8 hex boulon din931
Boulon aparans estanda gwosè opsyonèl: GB/T5783, GB/T5782, SH/T3404, DIN933, DIN931, ISO4014, ISO4017, UNI5737/UNI5739 Italyen estanda, ASME B18.2.3.1m, ASME B18.2.3.3.18. .5m B18.2.3.6M metrik egzagòn ekstèn, ANSI/ASME B18.2....