Hawke防爆变径，防爆堵头，防爆呼吸阀等Hawke防爆变径，防爆堵头，防爆呼吸阀等EPIN原装进口Hawke防爆格兰,Hawke防爆堵头,Hawke防爆变径接头,Hawke防爆电控箱等,广泛应用于石油石化和海洋钻井平台,有ATEX认证和ABS等认证。387，476，487，490系列Hawke防爆堵头价格及库存Hawke487DomedHeadStoppingPlugMaterials&FinishesManufacturedinBrass,NickelPlatedBrass,Steel,NickelPlatedSteelandStainlessSteel.487STOPPINGPLUGSSELECTIONTABLEThreadSizeLengthofThread‘S’Dia.AllenKeyM1615246M201526.510M25153410M32154510M401551.510M501561.510M631574.510M751586.510)