Long-life leakproof packing chamber with double packing and leak-off or single set packing.
Long-life leakproof packing chamber with double packing and leak-off or single set packing.
配置双填料和无泄漏的长寿命防泄漏填料腔或单填料。
Long-life leakproof packing chamber with double packing and leak-off or single set packing.
配置双填料和无泄漏的长寿命防泄漏填料腔或单填料。