checkvalve

常見例句

• THE STRUCTURE LENG OF DOUBLE FLANGE JOINT BUTTERFLY VALVE AND DOUBLE FLANGE JOINT BUTTERFLY TYPE CHECKVALVE
  雙法蘭連接蝶閥和雙法蘭連接蝶式止回閥結(jié)構(gòu)長(zhǎng)度
• Valves;fittings;faucet;etc.;Ballvalve;Bibcock;anglevalve;Checkvalve;Gatevalve;Sanitareyware;
  三角閥;其他水暖五金;水暖五金;水嘴;水龍頭;
• choker checkvalve
  阻氣單向閥
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