好妈妈5在线观看神马_好妈妈5在线观看完整_好妈妈5在线观看完整视频_好妈妈6在线_好妈妈6在线观看_好妈妈6在线观看视频_好妈妈6在线观看完整视频_好妈妈7在线观看无删减版_好妈妈高清在线观看_好妈妈免费观看中字_好妈妈在线播放BD_好妈妈在线观看韩剧_好妈妈在线观看中文版_好男人WWW神马视频在线观看_好男人的资源在线观看视频_好男人的资源在线观看视频网_好男人高清视频在线观看_好男人高清在线观看_好男人高清在线观看免费2019_好男人观看免费TV_好男人观看免费高清完整在线_好男人观看免费视频2018_好男人好视频资源在线播放_好男人好资源 在线观看_好男人好资源官网在线观看_好男人好资源影视在线_好男人好资源在线影视_好男人看片在线观看免费观看_好男人免费高清在线观看视频动漫_好男人免费资源视频在线观看

* Excellent selection of materials

Forged with high quality alloy structural steel. After annealing, rough processing, quenching, tempering, finishing and surface treatment and other processes processed. The product has the advantages of high hardness, good toughness and durability. The drill head should be installed on the corresponding air pick or hydraulic pick for use.

1:G7, G10, G11, G12, G20, G30 and other gas pick pick brazing, length 250-1500mm;

2:C4, C6, C7 and other gas shovel shovel brazing, length 300-1200mm

3: hex drill for B47, B67, B87 crusher, length 500mm, 550mm, 600mm;

4: hexagonal steel rod and other types of steel, can be customized according to customer needs.