铸钢法兰截止阀高温蒸汽碳钢阀门dn25/32/40/50/65/80/100/15/20

丝扣/内螺纹暗杆单闸板碳钢闸阀dn15 20 25 32 40 50

厂家直销丝扣/内螺纹暗杆单闸板304不锈钢闸阀dn15/20/32/40/50

厂家直销美标B型内螺纹/丝扣304不锈钢截止阀DN15/20/25/32/40/50

**304不锈钢截止阀J11W B型内螺纹管道开关阀门 4分6分重型

磅锻钢截止阀

J41W-16(P/R)/25/40不锈钢截止阀

Z41W-16(P/R)/25/40不锈钢闸阀

氧气管路用截止阀

截止阀