Van cửa inox, van cổng tay quay nối bích tiêu chuẩn API, van hóa chất
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Tổng lượt truy cập: 132 - Cập nhật: 18/02/2014 22:16:00 PM
Design standard:API 602/BS5352The length of the structure:length of structure of socket welding / thread end of forged steel gate valve is manufactured by factory standard=The length of structure of flange/...





















