Van cầu thép tay quay nối bích, van hơi nối bích, van cầu thép cacbon
Việt Thịnh
Tổng lượt truy cập: 132 - Cập nhật: 18/02/2014 22:20:00 PM
API 602/BS5352The length of the structure:length of structure of socket welding / thread end of forged steel gate valve is manufactured by factory standardThe length of structure of flange/ butt welding...





















