Langfang Pannext Pipe Fitting Co., Ltd. អាស័យដ្ឋាន 236 West Guangming Road Langfang, Hebei, China អ៊ីមែល amywang@pannext-casting.com xqin@pannext-casting.com msun@pannext-casting.com ទូរស័ព្ទ ០៣១៦-២៦៥២៦៧១