Weifang Heng Chemical Co., Ltd.

Calcium chloride has the characteristics of water heating and low solidifying point, usually used for roads, h

Calcium chloride has the characteristics of water heating and low solidifying point, usually used for roads, h

Flame retardant finishing of polyester fabric Flame retardant finishing of wool fabric Flame retardant fin

Mainly used for preparation of bromides, and used in medicine, pesticides, dyes, fragrances, photographic mate

Tubular pump running process is that the pipe with the pump barrel down to the desired depth, Under the same s

Mainly used for preparation of bromides, and used in medicine, pesticides, dyes, fragrances, photographic mate

This kind of coupling on the basis of the American petroleum institute API Spec 11 b - 1998 standard of sucker

Two-way protection arc sucker rod coupling is the special shape of spray welding layer on the sucker rod coupl

This kind of coupling based on the standard SY/T5029-2006 processing, main specifications: sm 5/8, 3/4 sm, sm

1, the structure is compact and reasonable 2, good energy-saving performance 3, good sealing performance

This kind of collar up to the standard API Spec 11 b and SY/T5029-2006 requirements, main specifications have