GB/T 820 Cross Recessed Raised Countersunk Head Screws Our GB/T 820 cross recessed raised countersunk head screws (commonly known as semi-countersunk screws) are designed for applications requiring a ...Xem thêm
Tin nhắn của kháchĐể lại tin nhắn.
Chưa có bình luận công khai
GB/T 820 Cross Recessed Raised Countersunk Head Screws