990W0200-I0S0S0E0M2K 蝶阀 蝶阀 FIG 990 DN200(990W0200-I0S0S0E0M2K) 蝶阀 FIG 990 DN100(990W0100-I0S0S0E0M2K) Keystone GRW Fig990 DN50 (990W0050-I0S0S0E0M2K) Fig990 DN65 (990W0065-I0S0S0E0M2K) Fig990 DN100 ( 990W0100-I0S0S0E0M2K) Fig990 DN125 ( 990W0125-I0S0S0E0M2K) Fig990 DN150 ( 990W0150-I0S0S0E0M2K) Fig990 DN200 ( 990W0200-I0S0S0E0M2K) 克西顿蝶阀 DN200,阀板316SS F79U012 F990 DLT200 I0S0S0N0M8K + F89U-020DA + TVA-M2WGNCM Keystone气动蝶阀 凯斯通气动蝶阀 基斯顿气动蝶阀F990 DLT300 I0S0S0N0M8K + F89U-051DA +DLT100M20 +791 +MENDO 现货 GRW DLT300 D0S0S2E0M1K, 蝶阀GRW DLT300 D0S0S2E0M1K + F89U-051DA +DLT100M20 +791蝶阀 F991T620DN100蝶阀 F990PTFE/EPDM白色蝶阀阀座 F990蝶阀 F991T620不锈钢蝶阀 keystone凯斯通气动蝶阀 凯世通气动蝶阀 F990 I0S0S0E0M8K+F89U-006DA+LP F990 DLT200 I0S0S0E0M8K+F89U-020DA F990 DLT250 I0S0S0E0M8K+F89U-032DA GRW DLT150 D0S0S2E0M1K + F89U-014DA DN125 F990W0125 I0S0S0E0M8K+F89U-014DA DN100 F990W100 I0S0S0E0M8K+F89U-006DA DN65 F990W065 I0S0S0E0M8K+F89U-006DA DN50 F990W050 I0S0S0E0M8K+F89U-004DA KEYSTONE 气动蝶阀 F990 I0S0S0E0M8K+F89U-006DA+LP-0B201BN00-00-0R1 Keystone气动调节阀F990DN100I0S0S0E0M8K +F89U-009DA+YT-1000  蝶阀和执行器都是keystone品牌；阀体-球墨铸铁，阀板-316SS,阀座-EPDM;执行器配双作用气缸； 定位器选用ROTORK.YTC韩国产YT-1000R，带输入/输出4-20mA信号；配套过滤减压阀， 气管·接口；调试安装好发货。