亚洲欧美日韩国产vr在线观_亚洲AⅤ永久无码一区二区三区_无码多人性战交疯狂派对_男人的好免费观看直播 - 美女Aⅴ毛片人人看一AV

Corrugated spring washer din128

Corrugated spring washer din128Corrugated spring washer din128Corrugated spring washer din128
  • Product description：Wave washer, also known as wave washer, is a regular wave shaped circular sheet. Generally used to prevent loosening, slow impact, need to have good elasticity and impact resistance and other properti

Corrugated spring washer din128

Material: stainless steel 304316, grade 8.8 high strength and grade 12.9 high strength

It can also support non-standard customization.